What we've done so far is define what context.aapl is, then we grabbed historical prices for AAPL, and, using those prices, generated some code to calculate, at every interval, what the 50 and 20 simple moving averages are. Our plan is to create a simple moving average crossover strategy, and we're almost ready. The Quantopian community forums are a great place to absorb some knowledge. Quantopian also runs a frequent contest for cash prices. We're going to start with algorithms. Once there, choose the blue "new algorithm" button. For now, we're going to be spending most of our time in two places, which can be found under the "My Code" button. quantopian / zipline. Watch 944 Star 11.4k ... One option would be to first run a dummy zipline simulation where the price of the desired stock price is recorded as a ... Quantopian Enterprise is an integrated research and development environment for data-driven investors, complete with bias-free, point-in-time data.