def test_sequence2(self):
""" test sequence 1: add ,add ,update, update, cancel"""
obj = OrderBook()
self.assertEqual(obj.get_best_bid_and_ask('AAPL'), (0, 0))
obj.process_order("1568390201|abbb11|a|AAPL|B|209.00000|100")
self.assertEqual(obj.get_best_bid_and_ask('AAPL'), (209.0, 0))
obj.process_order("1568390202|abbb12|a|AAPL|S|210.00000|10")
self.assertEqual(obj.get_best_bid_and_ask('AAPL'), (209.0, 210.0))
obj.process_order("1568390204|abbb11|u|10")
self.assertEqual(obj.get_best_bid_and_ask('AAPL'), (209.0, 210.0))
obj.process_order("1568390203|abbb12|u|101")
self.assertEqual(obj.get_best_bid_and_ask('AAPL'), (209.0, 210.0))
obj.process_order("1568390243|abbb11|c")
self.assertEqual(obj.get_best_bid_and_ask('AAPL'), (0, 210.0))
class test_order_book(unittest.TestCase):
def setUp(self):
self.completed_trades = []
self.completed_orders = []
self.orders = []
self.order_book = OrderBook("KEQ")
for i in range(1, 10):
quote = test_quotes[str(i)]
if "price" in quote:
quote["price"] = Decimal(quote["price"])
order = json.loads(self.order_book.process_order(quote))
self.orders.append(order)
for trades in self.order_book.completed_trades:
self.completed_trades.append(trades)
for orders in self.order_book.completed_orders:
self.completed_orders.append(orders)
def test_get_min_ask(self):
self.assertEqual(self.order_book.get_min_ask(), 99.5)
def test_get_max_bid(self):
self.assertEqual(self.order_book.get_max_bid(), 99)
def test_process_order(self):
self.assertEqual(len(self.order_book.bids.keys()), 1)
self.assertEqual(len(self.order_book.asks.keys()), 2)
self.assertEqual(len(self.completed_trades), 6)
self.assertEqual(len(self.order_book.ongoing_orders), 3)
self.assertEqual(len(self.completed_orders), 6)
def test_modify_order(self):
quote = test_quotes[str(10)]
if "price" in quote:
quote["price"] = Decimal(quote["price"])
new_order = json.loads(
self.order_book.modify_order(self.orders[8]["order_id"], quote))
self.assertEqual(new_order["price"], '75')
def test_cancel_order(self):
quote = test_quotes[str(10)]
if "price" in quote:
quote["price"] = Decimal(quote["price"])
new_order = json.loads(self.order_book.process_order(quote))
self.order_book.cancel_order(new_order["order_id"])
self.assertEqual(len(self.order_book.bids.keys()), 1)
class OnlineDA(object):
def __init__(self):
self.ob=OrderBook()
self.day=0
self.trades=[]
def nextDay(self):
self.day+=1
self.trades=[]
self.ob.asks=OrderTree()
self.ob.bids=OrderTree()
def submitOrder(self, order):
trades, remOrder=self.ob.process_order(order, False, False)
if len(trades)>0:
self.trades.extend(trades)
if not remOrder:
order['isFilled']=True
return trades, order
if remOrder['quantity']<order['quantity']:
order['isFilled']=True
return trades, order
order['isFilled']=False
return trades, order
def getOpenPrice(self):
if len(self.trades)>0:
return self.trades[0]['price']
return 0
def getClosePrice(self):
if len(self.trades)>0:
return self.trades[-1]['price']
return 0
def getHighPrice(self):
if len(self.trades)>0:
return np.max([t['price'] for t in self.trades])
return 0
def getLowPrice(self):
if len(self.trades)>0:
return np.min([t['price'] for t in self.trades])
return 0
def getVolume(self):
return np.sum([t['quantity'] for t in self.trades])
def main():
# TODO: Create three agents:
order_book = OrderBook()
agents = [101, 102, 103]
# TODO: Agents send in buy/sell orders randomly with some probablility
for i in range(30):
print '\nTimestep# {}: '.format(i)
for a in agents:
if (random.random() > 0.5):
# make an order
# buy or sell?
# TO BE REPLACED WITH TRADING STRATEGIES
tradedir = random.choice(['bid', 'ask'])
# how many?
ordqty = random.randint(1, 20)
# market or limit?
tradetype = random.choice(['market', 'limit'])
# if limit, what is your bid/ask price
if tradetype == 'limit':
# TO BE REPLACED WITH TRADING STRATEGIES
limitprice = random.uniform(90, 100)
# send in the order
if tradetype == 'market':
agent_order = {
'type': 'market',
'side': tradedir,
'quantity': ordqty,
'trade_id': a
}
print 'agent {} made a market order to {} {} shares'.format(
a, tradedir, ordqty)
else:
agent_order = {
'type': 'limit',
'side': tradedir,
'quantity': ordqty,
'price': limitprice,
'trade_id': a
}
print 'agent {} made a limit order at {} to {} {} shares'.format(
a, limitprice, tradedir, ordqty)
trades, order_in_book = order_book.process_order(
agent_order, False, False)
else:
print 'agent {} did not trade'.format(a)
# plot how the stock changes
print order_book
def main():
# TODO: Create three agents:
order_book = OrderBook()
agents = [101, 102, 103]
# TODO: Agents send in buy/sell orders randomly with some probablility
for i in range(30):
print '\nTimestep# {}: '.format(i)
for a in agents:
if (random.random() > 0.5):
# make an order
# buy or sell?
# TO BE REPLACED WITH TRADING STRATEGIES
tradedir = random.choice(['bid','ask'])
# how many?
ordqty = random.randint(1,20)
# market or limit?
tradetype = random.choice(['market', 'limit'])
# if limit, what is your bid/ask price
if tradetype == 'limit':
# TO BE REPLACED WITH TRADING STRATEGIES
limitprice = random.uniform(90,100)
# send in the order
if tradetype == 'market':
agent_order = {'type':'market', 'side':tradedir, 'quantity':ordqty, 'trade_id':a}
print 'agent {} made a market order to {} {} shares'.format(a, tradedir, ordqty)
else:
agent_order = {'type':'limit', 'side':tradedir, 'quantity':ordqty, 'price':limitprice, 'trade_id':a}
print 'agent {} made a limit order at {} to {} {} shares'.format(a, limitprice, tradedir, ordqty)
trades, order_in_book = order_book.process_order(agent_order, False, False)
else:
print 'agent {} did not trade'.format(a)
# plot how the stock changes
print order_book
'quantity': 5,
'price': 99,
'trade_id': 102
},
{
'type': 'limit',
'side': 'bid',
'quantity': 5,
'price': 97,
'trade_id': 103
},
]
# Add orders to order book
for order in limit_orders:
trades, order_id = order_book.process_order(order, False, False)
# The current book may be viewed using a print
print order_book
# Submitting a limit order that crosses the opposing best price will result in a trade
crossing_limit_order = {
'type': 'limit',
'side': 'bid',
'quantity': 2,
'price': 102,
'trade_id': 109
}
print crossing_limit_order
trades, order_in_book = order_book.process_order(crossing_limit_order, False,
class MarketSim(object):
def __init__(self, order_arrival_lambda=2, initial_price=100., price_sigma=.2, quantity_mu=2, quantity_sigma=1,
periods=None, traders=50, tick_size=.0001, purge_after_vol=100,
open_time=dt.datetime(2017, 1, 1, 8, 0, 0), close_time=dt.datetime(2017, 1, 1, 15, 0, 0)):
self.p0 = initial_price
self.p = initial_price
self.tick_size = tick_size
self.purge_after_vol = purge_after_vol
self.order_arrival_lambda = order_arrival_lambda
self.price_sigma = price_sigma
self.quantity_mu = quantity_mu
self.quantity_sigma = quantity_sigma
if periods:
self.periods = periods
else:
self.periods = (close_time-open_time).total_seconds()
if type(traders) == int:
traders = range(traders)
self.traders = traders
self.orderbook = OrderBook()
self.total_orders_submitted = 0
self.sides = np.array(['ask', 'bid'])
self.sign = np.array([1., -1.])
self.time = 0
self.orders_by_vol = deque(maxlen=None)
def simulate_batch(self, size=10000, verbose=False):
# number of orders that arrive
inter_arrival_times = np.random.exponential(self.order_arrival_lambda, size=size)
timestamps = inter_arrival_times.cumsum() + self.time
self.process_orders(timestamps, verbose)
self.purge_stale_orders()
self.time = timestamps[-1]
def simulate_periods(self, periods=None, verbose=False):
if not periods:
periods = self.periods
while self.time < periods:
self.simulate_batch(size=min(10000, periods/10), verbose=verbose)
def process_orders(self, timestamps, verbose=False):
# if new orders arrived--add them to the book
n_orders = len(timestamps)
# draw side (buy/sell) distribution is binomial, p=.5
order_side = np.random.choice([0, 1], size=n_orders, replace=True)
# randomly assign traders to each slot
order_trader = np.random.choice(self.traders, size=n_orders, replace=True)
order_price_shocks = np.random.lognormal(0, self.price_sigma, size=n_orders)
order_quantity = np.ceil(np.random.lognormal(self.quantity_mu, self.quantity_sigma, size=n_orders))
for i in xrange(n_orders):
if timestamps[i] > self.periods:
break
side = self.sides[order_side][i]
order_price = self.p * order_price_shocks[i] + self.sign[order_side][i] * self.tick_size * self.p
quote = {
"type": "limit",
"side": side,
"timestamp": timestamps[i],
"trade_id": order_trader[i],
"order_id": self.total_orders_submitted,
"price": order_price,
'quantity': int(order_quantity[i])
}
self.orderbook.process_order(quote, from_data=True, verbose=verbose)
self.log_order_type(side)
self.total_orders_submitted += 1
self.sync_book_price()
def purge_stale_orders(self):
if len(self.orders_by_vol) > 0 & len(self.orderbook.tape) >= 100:
current_vol = len(self.orderbook.tape)
while current_vol-self.purge_after_vol >= self.orders_by_vol[0][0]:
_, side, order_id = self.orders_by_vol.popleft()
self.orderbook.cancel_order(side=side, order_id=order_id)
if len(self.orders_by_vol) == 0:
break
def sync_book_price(self):
if len(self.orderbook.tape) > 0:
self.p = float(self.orderbook.tape[-1]['price'])
def plot_prices(self, time_scale=1.,plot_params={}):
interval_trades = self.get_transactions(time_scale=time_scale)
interval_trades.set_index('time')['price'].apply(lambda x: float(x)).plot(**plot_params)
def get_tape_dataframe(self):
return pd.DataFrame(list(self.orderbook.tape))
def show_stats(self):
n_trades = len(self.orderbook.tape)
mean_quantity = self.get_tape_dataframe()['quantity'].apply(lambda x: float(x)).mean()
print("trades per second: %3.3f" % (n_trades / self.time))
print("quantity per 600: %3.3f" % (mean_quantity * 600))
def log_order_type(self, side):
order_id = self.total_orders_submitted
current_vol = len(self.orderbook.tape)
self.orders_by_vol.append((current_vol, str(side), int(order_id)))
@staticmethod
def get_side_id(side, party1, party2):
if party1[1] == side:
return party1[0]
else:
return party2[0]
def get_transactions(self, time_scale=1):
tape = self.get_tape_dataframe()
tape['price'] = tape['price'].apply(float)
tape['quantity'] = tape['quantity'].apply(int)
tape['time'] = tape['timestamp'].apply(lambda x: np.floor(x/time_scale))
tape['quantity'] = (tape.groupby('time')['quantity'].transform('sum'))
agg = tape.groupby('time').last().reset_index()
agg['ask_id'] = agg.apply(lambda row: MarketSim.get_side_id('ask', row['party1'], row['party2']), axis=1)
agg['bid_id'] = agg.apply(lambda row: MarketSim.get_side_id('bid', row['party1'], row['party2']), axis=1)
return agg[['time', 'ask_id', 'bid_id', 'quantity', 'price']]
def export_transactions(self, filename):
self.get_transactions().to_csv(filename, index=False)
from orderbook import OrderBook
# Create an order book
order_book = OrderBook()
# Create some limit orders
limit_orders = [
{'type' : 'limit', 'side' : 'bid', 'quantity' : 200,'price' : 161, 'trade_id' : 100, 'order_id' : 100, 'timestamp' : 1},
{'type' : 'limit', 'side' : 'bid', 'quantity' : 300,'price' : 162, 'trade_id' : 101, 'order_id' : 101, 'timestamp' : 2},
{'type' : 'limit', 'side' : 'bid', 'quantity' : 500,'price' : 163, 'trade_id' : 102, 'order_id' : 102, 'timestamp' : 3},
{'type' : 'limit', 'side' : 'bid', 'quantity' : 200,'price' : 164, 'trade_id' : 103, 'order_id' : 103, 'timestamp' : 4},
{'type' : 'limit', 'side' : 'ask', 'quantity' : 400,'price' : 160, 'trade_id' : 200, 'order_id' : 200, 'timestamp' : 5},
{'type' : 'limit', 'side' : 'ask', 'quantity' : 400,'price' : 161, 'trade_id' : 201, 'order_id' : 201, 'timestamp' : 6},
{'type' : 'limit', 'side' : 'ask', 'quantity' : 100,'price' : 162, 'trade_id' : 202, 'order_id' : 202, 'timestamp' : 7},
{'type' : 'limit', 'side' : 'ask', 'quantity' : 300,'price' : 163, 'trade_id' : 203, 'order_id' : 203, 'timestamp' : 8},
{'type' : 'limit', 'side' : 'ask', 'quantity' : 300,'price' : 164, 'trade_id' : 204, 'order_id' : 204, 'timestamp' : 9},
]
# Add orders to order book
for order in limit_orders:
trades, order_id = order_book.process_order(order, True, False)
#print(trades, order_id)
# The current book may be viewed using a print
print(order_book)
q = order_book.asks
else:
sys.exit('not given bid or ask')
for order in q.price_tree.get(Decimal(line['price']),
[]):
if order.trade_id == line['trade_id']:
order_book.cancel_order(line['side'],
order.order_id)
elif line['type'] == 'modify':
order_book.modify_order(line['order_id'], {
'side': line['side'],
'price': line['price'],
'quantity': line['quantity']})
else:
(trade, order) = order_book.process_order(line,
False,
False)
myalgo.process_trade(trade, mode)
if len(algo_orders) > 0:
printme("\n")
printme("After algo")
print_orderbook(order_book, old_orderbook)
stats=myalgo.stats()
printme ("total volume=", stats[0])
printme ("my volume=", stats[1])
printme ("participation=", stats[3])
else:
printme("No action by algo")
printme("--------- END -------")
reader.close()
except IOError:
'trade_id' : 101},
{'type' : 'limit',
'side' : 'bid',
'quantity' : 5,
'price' : 99,
'trade_id' : 102},
{'type' : 'limit',
'side' : 'bid',
'quantity' : 5,
'price' : 97,
'trade_id' : 103},
]
# Add orders to order book
for order in limit_orders:
trades, order_id = order_book.process_order(order, False, False)
# The current book may be viewed using a print
print order_book
# Submitting a limit order that crosses the opposing best price will result in a trade
crossing_limit_order = {'type': 'limit',
'side': 'bid',
'quantity': 2,
'price': 102,
'trade_id': 109}
print crossing_limit_order
trades, order_in_book = order_book.process_order(crossing_limit_order, False, False)
print "Trade occurs as incoming bid limit crosses best ask"
print trades
def test_sequence3(self):
""" test sequence 1: add ,add ,add,add,cancel,cancel """
obj = OrderBook()
self.assertEqual(obj.get_best_bid_and_ask('AAPL'), (0, 0))
obj.process_order("1568390201|abbb11|a|AAPL|B|209.00000|100")
self.assertEqual(obj.get_best_bid_and_ask('AAPL'), (209.0, 0))
obj.process_order("1568390201|abbb12|a|AAPL|B|209.50000|100")
self.assertEqual(obj.get_best_bid_and_ask('AAPL'), (209.5, 0))
obj.process_order("1568390203|abbb13|a|AAPL|S|210.00000|10")
self.assertEqual(obj.get_best_bid_and_ask('AAPL'), (209.5, 210.0))
obj.process_order("1568390204|abbb14|a|AAPL|S|209.90000|10")
self.assertEqual(obj.get_best_bid_and_ask('AAPL'), (209.5, 209.9))
obj.process_order("1568390243|abbb12|c")
self.assertEqual(obj.get_best_bid_and_ask('AAPL'), (209.0, 209.9))
obj.process_order("1568390244|abbb14|c")
self.assertEqual(obj.get_best_bid_and_ask('AAPL'), (209.0, 210.0))
printme('')
printme("RUNNING ALGO WITH MODE=", mode)
old_orderbook = copy.deepcopy(order_book)
for line in algo_orders:
printme(pprint.pformat(line))
if line['type'] == 'cancel':
order_book.cancel_order(line['side'],
line['order_id'])
elif line['type'] == 'modify':
order_book.modify_order(line['order_id'], {
'side': line['side'],
'price': line['price'],
'quantity': line['quantity']})
else:
(trade, order) = order_book.process_order(line,
False,
False)
myalgo.process_trade(trade, mode)
if len(algo_orders) > 0:
printme("\n")
printme("After algo")
print_orderbook(order_book, old_orderbook)
stats=myalgo.stats()
printme ("total volume=", stats[0])
printme ("my volume=", stats[1])
printme ("participation=", stats[3])
else:
printme("No action by algo")
printme("--------- END -------")
reader.close()
except IOError:
class OrderBookTestCase(unittest.TestCase):
''' Unittest for the OrderBook module '''
def setUp(self):
self.order_book = OrderBook()
self.limit_orders = [{'type' : 'limit',
'side' : 'ask',
'quantity' : 5,
'price' : 101},
{'type' : 'limit',
'side' : 'ask',
'quantity' : 5,
'price' : 103},
{'type' : 'limit',
'side' : 'ask',
'quantity' : 5,
'price' : 101},
{'type' : 'limit',
'side' : 'ask',
'quantity' : 5,
'price' : 101},
{'type' : 'limit',
'side' : 'bid',
'quantity' : 5,
'price' : 99},
{'type' : 'limit',
'side' : 'bid',
'quantity' : 5,
'price' : 98},
{'type' : 'limit',
'side' : 'bid',
'quantity' : 5,
'price' : 99},
{'type' : 'limit',
'side' : 'bid',
'quantity' : 5,
'price' : 97},
]
for order in self.limit_orders:
trades, order_id = self.order_book.process_order(order)
def test_process_asks_order(self):
''' set up asks orders for unittests '''
self.assertEquals(self.order_book.asks.order_map[1].price, 101.0)
self.assertEquals(self.order_book.asks.order_map[2].price, 103.0)
self.assertEquals(self.order_book.asks.order_map[3].price, 101.0)
self.assertEquals(self.order_book.asks.order_map[4].price, 101.0)
def test_process_bids_order(self):
''' set up bids orders for unittests '''
self.assertEquals(self.order_book.bids.order_map[5].price, 99.0)
self.assertEquals(self.order_book.bids.order_map[6].price, 98.0)
self.assertEquals(self.order_book.bids.order_map[7].price, 99.0)
self.assertEquals(self.order_book.bids.order_map[8].price, 97.0)
def test_trades(self):
''' Submitting a limit order that crosses the opposing best price
will result in a trade '''
crossing_limit_order = {'type': 'limit',
'side': 'bid',
'quantity': 2,
'price': 102}
trades, order_in_book = self.order_book.process_order(\
crossing_limit_order)
self.assertEquals(trades[0]['price'], 101)
self.assertEquals(trades[0]['quantity'],2)
def test_large_trades(self):
''' If a limit crosses but is only partially matched, the remaning
volume will be placed in the book as an outstanding order '''
big_crossing_limit_order = {'type': 'limit',
'side': 'bid',
'quantity': 50,
'price': 102}
trades, order_in_book = self.order_book.process_order(\
big_crossing_limit_order)
self.assertEquals(order_in_book['price'], 102)
self.assertEquals(order_in_book['quantity'], 35)
class OrderBookTestCase(unittest.TestCase):
''' Unittest for the OrderBook module '''
def setUp(self):
self.order_book = OrderBook()
self.limit_orders = [
{
'type': 'limit',
'side': 'ask',
'quantity': 5,
'price': 101
},
{
'type': 'limit',
'side': 'ask',
'quantity': 5,
'price': 103
},
{
'type': 'limit',
'side': 'ask',
'quantity': 5,
'price': 101
},
{
'type': 'limit',
'side': 'ask',
'quantity': 5,
'price': 101
},
{
'type': 'limit',
'side': 'bid',
'quantity': 5,
'price': 99
},
{
'type': 'limit',
'side': 'bid',
'quantity': 5,
'price': 98
},
{
'type': 'limit',
'side': 'bid',
'quantity': 5,
'price': 99
},
{
'type': 'limit',
'side': 'bid',
'quantity': 5,
'price': 97
},
]
for order in self.limit_orders:
trades, order_id = self.order_book.process_order(order)
def test_process_asks_order(self):
''' set up asks orders for unittests '''
self.assertEquals(self.order_book.asks.order_map[1].price, 101.0)
self.assertEquals(self.order_book.asks.order_map[2].price, 103.0)
self.assertEquals(self.order_book.asks.order_map[3].price, 101.0)
self.assertEquals(self.order_book.asks.order_map[4].price, 101.0)
def test_process_bids_order(self):
''' set up bids orders for unittests '''
self.assertEquals(self.order_book.bids.order_map[5].price, 99.0)
self.assertEquals(self.order_book.bids.order_map[6].price, 98.0)
self.assertEquals(self.order_book.bids.order_map[7].price, 99.0)
self.assertEquals(self.order_book.bids.order_map[8].price, 97.0)
def test_trades(self):
''' Submitting a limit order that crosses the opposing best price
will result in a trade '''
crossing_limit_order = {
'type': 'limit',
'side': 'bid',
'quantity': 2,
'price': 102
}
trades, order_in_book = self.order_book.process_order(\
crossing_limit_order)
self.assertEquals(trades[0]['price'], 101)
self.assertEquals(trades[0]['quantity'], 2)
def test_large_trades(self):
''' If a limit crosses but is only partially matched, the remaning
volume will be placed in the book as an outstanding order '''
big_crossing_limit_order = {
'type': 'limit',
'side': 'bid',
'quantity': 50,
'price': 102
}
trades, order_in_book = self.order_book.process_order(\
big_crossing_limit_order)
self.assertEquals(order_in_book['price'], 102)
self.assertEquals(order_in_book['quantity'], 35)
