Most options strategies look great in a backtest and fail with real money. Vesper shows you which kind yours is first. Describe a strategy in plain words (cash-secured puts, the wheel, put spreads) and test it on years of real option quotes at the real bid and ask. Results are scored out of sample with rules set in advance, so you see the lower bound, not the best case. Then track it on paper. Free to start, no card. Vesper never connects to your broker.
