Premium seller // TBI covered calls & cash-secured puts

TBI covered call calculator

Prefilled from TBI’s delayed chain: a near-30-delta contract at the mid, 186 days out. Adjust anything — the arithmetic updates live.

Prefilled from TBI’s delayed chain (as of Aug 15, 4:57 AM ET) — a near-30-delta call at the mid. Every field is editable; check live quotes before acting on anything.

Premium collected$85.001 contract × $0.85 × 100
Return if flat8.31%17.0% annualized · stock unchanged at expiry
Return if called54.94%136.1% annualized · called away at $15.00
Breakeven$9.38cost basis minus premium
Downside cushion8.31%premium as % of stock price
Max profit$562.00capped at the $15.00 strike

Annualized figures compound the period return over 365 days and assume repeatability, which real markets do not promise. Assignment can happen early; dividends and fees are not modeled. Educational arithmetic, not a recommendation.

Context before writing anything: TBI max pain & open interest · TBI workspace · earnings calendar · the plain calculator

TBI covered call FAQ

What does the TBI covered call calculator prefill?

A near-30-delta TBI call (and put, for the cash-secured mode) at the bid/ask midpoint from the delayed Cboe chain, plus TBI's delayed price and the days to that expiration. Every field stays editable.

How is a TBI covered call return calculated?

Premium collected divided by your TBI cost basis gives the return if flat; the capital gain up to the strike plus premium gives the return if called. Both are annualized over the days to expiration for comparison.

Is this live data?

The prefill uses delayed (~15 minute) quotes, labeled with their as-of time. Check live quotes at your broker before trading; this page is educational arithmetic, not a recommendation.