Max pain // Cboe delayed data · as of Aug 17, 11:39 PM ET

REGN max pain

Spot (delayed)$805.93
Max pain · Fri, Sep 11$760-5.7% vs spot
Expected move (ATM straddle)±$43.65±5.4% by Fri, Sep 11
Put/Call OI0.5025 puts / 50 calls
Call wall$800largest call OI
Put wall$680largest put OI
IV3025.9%30-day implied vol
Net GEX+$130Kper 1% move · flip ≈ $660

Event risk before this expiration: Jobs report Fri, Sep 4 · CPI release Fri, Sep 11 — macro releases historically overwhelm pinning effects; max pain reads weakest in event weeks.

Max pain levels

ExpiryMax painvs spotDTE
Fri, Aug 21$665-17.5%3d
Fri, Aug 28$730-9.4%10d
Fri, Sep 4$720-10.7%17d
Fri, Sep 11$760-5.7%24d
Fri, Sep 18$700-13.1%31d
Fri, Sep 25$700-13.1%38d
Fri, Oct 2$930+15.4%45d
Fri, Oct 16$720-10.7%59d

The writer-loss curve — where max pain comes from

spot760530608686764842920$1M$0
■ put-side pain■ call-side painTotal payout option writers would owe at each settle price (both sides, all open interest, ×100 shares) — low settles hurt put writers, high settles hurt call writers. The minimum — 760 — is the max pain price.

Open interest by strike · Fri, Sep 11

spot7605306907407808208801414
■ calls (up)■ puts (down)REGN open contracts per strike for Fri, Sep 11.

Open-interest change — building vs unwinding

Needs two observed snapshot days for this expiration — the comparison appears automatically once the next weekday snapshot lands. We diff real observations only; nothing is estimated.

Volume by strike · Fri, Sep 11

spot76053069074078082088011
■ calls (up)■ puts (down)Today's traded contracts per strike (delayed).

Implied volatility by strike · Fri, Sep 11

spot53060868676484292098%25%
— call IV— put IVATM ≈ 25.8% · Quoted strikes only; illiquid wings with junk fits are dropped, not smoothed.

Gamma exposure by strike · Fri, Sep 11

spotflip 660530690750790840890+$60K$60K
Net dealer gamma per strike, in dollars per 1% move, assuming the standard convention (dealers long calls, short puts) — an assumption, not an observation. Above the amber flip level hedging tends to dampen moves; below it, to amplify them.

Greeks by strike · Fri, Sep 11

Call ΔCall ΘStrikeΓVegaPut ΘPut Δ
0.86-0.287400.00330.47-0.29-0.14
0.83-0.317500.00390.53-0.32-0.17
0.80-0.347600.00460.60-0.35-0.21
0.75-0.377700.00530.67-0.38-0.25
0.70-0.407800.00610.74-0.41-0.31
0.64-0.427900.00670.79-0.43-0.37
0.57-0.438000.00710.83-0.44-0.44
0.49-0.438100.00730.84-0.44-0.51
0.42-0.428200.00720.82-0.43-0.58
0.29-0.388400.00620.73-0.38-0.72
0.24-0.358500.00560.66-0.35-0.77
0.16-0.288700.00420.52-0.29-0.85
0.13-0.268800.00360.46-0.26-0.88
0.11-0.238900.00300.40-0.23-0.91
0.06-0.169200.00190.27-0.17-0.95

Quoted contract greeks from the delayed feed (not modeled here); the highlighted row is nearest to spot. Showing 15 strikes around the money — all 23 are in the CSV. Δ per $1 of underlying · Θ per day · vega per IV point.

Stacked — layer the expirations

spot5656507007608158904610
Call open interest per strike, stacked across the checked expirations — each color is one expiry. Strikes are pruned to the liquid center of each chain.

All expirations combined — total open interest

spot2804706007008109802K2K
■ calls (up)■ puts (down)Every expiration combined: 22K call contracts, 19K put contracts open.

Reading this honestly

Max pain is arithmetic, not prophecy: the settle price that would minimize what option writers pay out at expiration, computed from open interest alone. Prices sometimes gravitate toward heavy strikes into expiry — dealer hedging is a real flow — but the evidence that max pain predicts settlement better than chance is mixed, and we are not going to pretend otherwise. Use it as a map of where positioning is stacked, next to the fundamentals and the earnings calendar, not as a target.

Data: Cboe delayed public feed (~15 minutes), refreshed here about every 15 minutes. Open interest itself updates once daily, before the open. Educational information, not investment advice.

Keep going: REGN workspace · max pain, explained in full · options profit calculator · GEX, defined · pin risk