GOOG Options Open Interest: Walls, P/C Ratio, ATM IV & Skew
SystemTrader's GOOG Options Open Interest dashboard pulls Alphabet's full chain from CBOE each evening — ~2,700 contracts. GOOG has thinner weekly density than the megacap tech peers, so positioning concentrates around the monthly expirations — making the standing OI book a clean read on where dealers sit.
Pair this with the SPY Options OI dashboard, VIX term structure, and earnings calendar.
GOOG historically runs P/C OI below 1.0 — call-heavy from dominant retail and momentum flows. Compare today's ratio to the history chart below; SPY-style regime labels don't transfer to single names.
GOOG Price with Options Book Overlay
Alphabet closing price (last ~2 years) with today's top OI walls shaded as support / resistance bands, plus max-pain and zero-gamma flip levels.
OI Distribution by Strike
All open interest within ±15% of spot. Dashed lines mark today's spot, max-pain strike, and the zero-gamma flip.
| Strike | % from Spot | OI | Vol | Exp | DTE |
|---|---|---|---|---|---|
| $330 | -12.9% | 24,355 | 111 | 2026-09-18 | 118d |
| $375 | -1.0% | 13,307 | 161 | 2026-06-18 | 26d |
| $310 | -18.1% | 10,747 | 9 | 2026-06-18 | 26d |
| $275 | -27.4% | 10,384 | 1 | 2026-06-18 | 26d |
| $340 | -10.2% | 10,369 | 4 | 2027-01-15 | 237d |
| $375 | -1.0% | 10,132 | 59 | 2026-12-18 | 209d |
| $380 | +0.3% | 10,098 | 116 | 2026-08-21 | 90d |
| $305 | -19.5% | 10,053 | 13 | 2026-10-16 | 146d |
| $385 | +1.7% | 9,220 | 9 | 2026-08-21 | 90d |
| $350 | -7.6% | 8,488 | 42 | 2026-08-21 | 90d |
| Strike | % from Spot | OI | Vol | Exp | DTE |
|---|---|---|---|---|---|
| $375 | -1.0% | 20,417 | 174 | 2026-06-18 | 26d |
| $400 | +5.6% | 13,431 | 6,604 | 2026-06-18 | 26d |
| $415 | +9.6% | 12,970 | 331 | 2026-06-18 | 26d |
| $390 | +3.0% | 12,097 | 6,741 | 2026-05-29 | 6d |
| $75 | -80.2% | 10,652 | 0 | 2026-12-18 | 209d |
| $410 | +8.3% | 10,612 | 960 | 2026-06-18 | 26d |
| $350 | -7.6% | 10,603 | 181 | 2026-06-18 | 26d |
| $400 | +5.6% | 10,139 | 135 | 2027-01-15 | 237d |
| $430 | +13.6% | 9,822 | 287 | 2026-09-18 | 118d |
| $320 | -15.5% | 9,236 | 30 | 2026-06-18 | 26d |
P/C OI Ratio History
Daily P/C OI ratio with GOOG overlay. CBOE doesn't serve historical chains — series accumulates forward from 2026-05-23.
1 daily snapshot captured so far.
How GOOG Options Open Interest Works
- 1Pull the full GOOG (Alphabet) options chain after market closeEach trading day we hit CBOE's public delayed-quotes JSON endpoint and pull the entire GOOG options chain — every strike across every expiration with bid, ask, volume, open interest, IV, and full Greeks. Strike grid is $2.50 near spot, $5 in the wings — perfect for visualizing where the standing book sits.
- 2Compute the put/call ratio (no SPY-style regime label)Single names structurally run P/C OI below 1.0 because retail call flow dominates and they lack the institutional broad-hedge bid that pushes SPY's ratio above 1.6. We report the raw P/C OI and P/C volume, but we deliberately do *not* apply SPY's "Greedy/Balanced/Defensive/Stress" labels — they would misclassify every day. After ~30 sessions of accumulated history we'll add percentile-vs-own-history positioning reads.
- 3Surface the top OI walls — dealer support and resistance candidatesFor each side we rank strikes by aggregated open interest. Put walls below spot are where dealers are short customer puts and may defend on a flush; call walls above spot are where rallies tend to slow as dealer hedging kicks in. The page overlays the top walls directly on the GOOG price chart so you can see where price has actually traded relative to the standing book.
- 4Calculate max pain on the full chainMax pain is the strike at which total payout to all option holders is minimized — equivalently, where option writers (largely dealers) lose the least. On single names max-pain is fragile around earnings (the binary event overrides pin mechanics), so we flag the earnings-window expiration explicitly.
- 5Surface ATM IV on the nearest monthly + 25-delta skewSingle names live and die by their term structure and skew. We pick the largest-OI expiration inside 45 days (always the next monthly) and report (a) the average IV of the closest call and put to spot (ATM IV), and (b) the IV of the 25-delta put minus IV of the 25-delta call (positive = downside protection more expensive). Compare today's skew to where it was leading into the last earnings print for a positioning read.
- 6Build the dealer gamma curveFor each strike we compute dollar gamma (OI × gamma × 100 × spot²). Standard convention: customers net-long calls and net-short puts, so dealers are short calls (negative gamma) and long puts (positive gamma). Walking the curve in strike order gives a cumulative dealer gamma — the strike where it flips sign is the gamma flip. Caveat: this convention is shakier on single names than on SPY, so we treat the flip as a sub-metric, not the headline.
- 7Accumulate forward — P/C ratio historyCBOE doesn't serve historical chains, so we snapshot daily and accumulate the time series forward. After ~30 sessions the history chart becomes useful for comparing today's positioning to recent norms — and once we have enough history per name, we'll layer percentile bands so you can tell at a glance whether today is unusually call-skewed or put-skewed for *this* ticker.