REGN
Regeneron PharmaceuticalsAs of 2026-10-30 15:59 ET, REGN net GEX is $3.1M per 1% move; REGN call wall is $930; put wall is $840.
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More REGN options data
The price and the session change are a point-in-time snapshot taken at the time shown. The gamma levels run on a different clock: they are computed 2026-10-31 03:20 ET from the open interest carried on the option chain at that time and are not intraday values. Dealer positioning is an assumption, not an observable: open interest shows that a contract exists, never which side a dealer holds. How dealer gamma is computed.
As of 2026-10-31 03:20 ET, SquawkFlow published REGN at $927.89 at the 4:00 PM ET close on 2026-10-30 (+13.33%), net dealer gamma of $3.1M, a call wall at 930 and a put wall at 840. The gamma figures are computed 2026-10-31 03:20 ET from the open interest carried on the option chain at that time; dealer positioning is an assumption, not an observable. Source: SquawkFlow, https://squawkflow.com/ticker/REGN.
MARKET SNAPSHOT
| Call Wall | 930 |
| Put Wall | 840 |
| Swing Line | 840 |
| Net GEX | $3.1M |
Cached snapshot as of 2026-10-31 03:20 ET, live streaming data in the terminal.
REGN DEALER GAMMA BY STRIKE
Part of the SquawkFlow GEX Calculator: gamma by strike for any US stock. Compare with SPX GEX.
Net gamma exposure at each strike near REGN's spot price, signed from the dealer perspective, calls positive, puts negative. Green strikes are where hedging tends to dampen moves; red is where it tends to amplify them. Dealer positioning is an assumption rather than an observable, so treat these as a map of where hedging pressure concentrates, not a forecast.
Unit: USD of dealer gamma per 1 percent move in spot. A window of the REGN option chain, not the whole book: the 30 strikes nearest spot out of 100 seen, 396 contract rows spanning 2 expirations. Gamma is taken as the chain publishes it per contract; nothing here is re-priced. Crossed with the open interest carried on that chain. These rows came from the last chain saved to disk, not from a fresh provider response, so the vintage is older than the calculation time.
New to these levels? Start with the call wall and put wall, or the zero gamma level where the sign of dealer hedging flips.
All captured expirations. Chain as of .
| Strike | Net GEX | Call GEX | Put GEX | Concentration |
|---|---|---|---|---|
| 1000 | $0 | $0 | $0 | |
| 990 | $0 | $0 | $0 | |
| 980 | $0 | $0 | $0 | |
| 970 | $0 | $0 | $0 | |
| 965 | $0 | $0 | $0 | |
| 960 | $0 | $0 | $0 | |
| 955 | $0 | $0 | $0 | |
| 950 | $31.9K | $31.9K | $0 | |
| 945 | $0 | $0 | $0 | |
| 940 | $5.4K | $5.4K | $0 | |
| 935 | $125.5K | $125.5K | $0 | |
| 930CALL WALL | $167.7K | $167.7K | $0 | |
| 925SPOT | $0 | $0 | $0 | |
| 920 | $165.3K | $165.3K | $0 | |
| 915 | $169.0K | $169.0K | $0 | |
| 910 | $113.8K | $113.8K | $0 | |
| 905 | $0 | $0 | $0 | |
| 900 | $631.3K | $631.3K | $0 | |
| 895 | $0 | $0 | $0 | |
| 890 | $26.0K | $26.0K | $0 | |
| 885 | $0 | $0 | $0 | |
| 880 | $1.5M | $1.5M | $0 | |
| 875 | $0 | $0 | $0 | |
| 870 | $3.3K | $3.3K | $0 | |
| 865 | $3.0K | $3.0K | $0 | |
| 860 | $25.5K | $25.5K | $0 | |
| 855 | $0 | $0 | $0 | |
| 850 | $89.3K | $89.3K | $0 | |
| 845 | $0 | $0 | $0 | |
| 840PUT WALL | $8.6K | $10.6K | -$2.1K |
These levels were captured October 31, 2026 from the open interest carried on the option chain. New levels post before each market open. Today's SPX gamma levels.
COMMON QUESTIONS
- What was the last REGN price on this page?
- REGN close, Oct 30: $927.89 (+13.33%), as of 2026-10-31 03:20 ET.
- What are the REGN call wall and put wall?
- As of 2026-10-31 03:20 ET, the REGN call wall was at 930 and the put wall at 840, computed 2026-10-31 03:20 ET from the open interest carried on the option chain at that time.
- What is REGN net dealer gamma?
- As of 2026-10-31 03:20 ET, net dealer gamma for REGN was $3.1M, Positive gamma. Dealer positioning is an assumption, not an observable.
- How often do these REGN figures change?
- The price is a snapshot taken at the time shown. The gamma levels come from open interest that settles once per trading day, and the page refreshes at most once an hour.
ABOUT REGN
Regeneron develops biotechnology medicines and antibody discovery technology. Its products include Eylea, Dupixent, and Libtayo.
WHY TRACK REGN ON SQUAWKFLOW
REGN options flow spikes around Dupixent indication expansions and Eylea biosimilar competition updates. Institutional positioning often reflects views on the company's next blockbuster antibody candidates.
REGN IN 13F FILINGS
2 of the 8 managers in SquawkFlow's 13F cohort with a filing on record reported shares of REGN (filed as REGENERON PHARMACEUTICALS, class COM) in their most recent Form 13F filing (newest: 2026-Q2, filed August 13, 2026). A 13F is filed up to 45 days after the quarter ends, so it is a dated snapshot, not a trade record.
- Renaissance Technologies LLC reported 148,222 shares ($92M) at the end of 2026-Q2, filed August 13, 2026. 2026-Q2 filing
- Bridgewater Associates LP reported 51,333 shares ($32M) at the end of 2026-Q2, filed August 14, 2026. 2026-Q2 filing
Form 13F reports long positions in 13(f) securities held on the last day of the quarter. It excludes short positions, cash, and assets outside 13(f) scope. An absent security is not evidence of a sale. Matched on the issuer name and share class as filed. The cohort is a named set of managers, not every 13F filer. All cohort managers
REGN DATA ON SQUAWKFLOW
Options Flow
REGN options flow, unusual activity, and volume concentrations from the session chain
Latest Snapshot
Last REGN price, change, volume, and the current dealer-gamma regime
GEX Dashboard
REGN gamma exposure levels, call/put walls, and GEX flip
AI Narration
AI-powered analysis of REGN market microstructure in real time
News Sentiment
REGN news with AI sentiment scoring and impact analysis
Sector Context
Healthcare sector rotation and relative strength vs peers
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