Vesper Options: Guardrailed options selling for individuals

Hi friends!

I built Vesper because of my own trading. I sell options premium (cash-secured puts, put spreads), and for a long time I judged my strategies the way most people do: a backtest that looked great and a win rate in the high 80s.

Then one oversized trade on a 3x leveraged ETF erased months of small wins in a single week. When I went back through my records, I found something uncomfortable, which is that strategies weren’t really the problem. My backtests priced trades at the midpoint, counted every trade in the same selloff as if it were independent, and never told me how much of my account one bad gap could take.

So Vesper does the things I wish I’d had:

Real fills. Every test uses years of historical option quotes, priced at the bid a seller actually receives and the ask a buyer pays. No flattering midpoints.
Lower bounds, not best cases. Results come with an interval, bootstrapped by month, so you see how bad it could plausibly be, not just the average.
Rules set in advance. You register a strategy with its pass/fail bar written down before the forward test starts, so you can’t quietly move the goalposts when it disappoints.
A sizing check. Each idea shows what share of your account it really puts at risk, counted per underlying factor. QQQ, TQQQ and a big tech stock are one bet, not three.
A public track record. Every strategy we’ve registered is on it, losers included. Most ideas fail, and that’s the process working.

FAQs:

Does it trade for me? No. Vesper is paper only. It never connects to your broker or touches your money. You decide what, if anything, to trade. Brokerage integrations for automated trading are built but I haven't enabled trading for others yet, just myself to make sure the orders go through correctly.
What does it cost? Free to start, and there is a free tier you can stay on indefinitely. New accounts get a 30-day Pro trial, no card needed.
Is the edge real? Selling premium has a small, real edge historically, and it lives or dies on sizing. Our guides show the replays, including the losing years: lastvesper.com/guides

Try describing the strategy you actually run and tell me where the result surprised you, or where the tool got in your way. I read every reply.

Hi friends!

So Vesper does the things I wish I’d had:

Real fills. Every test uses years of historical option quotes, priced at the bid a seller actually receives and the ask a buyer pays. No flattering midpoints.
Lower bounds, not best cases. Results come with an interval, bootstrapped by month, so you see how bad it could plausibly be, not just the average.
Rules set in advance. You register a strategy with its pass/fail bar written down before the forward test starts, so you can’t quietly move the goalposts when it disappoints.
A sizing check. Each idea shows what share of your account it really puts at risk, counted per underlying factor. QQQ, TQQQ and a big tech stock are one bet, not three.
A public track record. Every strategy we’ve registered is on it, losers included. Most ideas fail, and that’s the process working.

FAQs:

Does it trade for me? No. Vesper is paper only. It never connects to your broker or touches your money. You decide what, if anything, to trade. Brokerage integrations for automated trading are built but I haven't enabled trading for others yet, just myself to make sure the orders go through correctly.
What does it cost? Free to start, and there is a free tier you can stay on indefinitely. New accounts get a 30-day Pro trial, no card needed.
Is the edge real? Selling premium has a small, real edge historically, and it lives or dies on sizing. Our guides show the replays, including the losing years: lastvesper.com/guides

Try describing the strategy you actually run and tell me where the result surprised you, or where the tool got in your way. I read every reply.