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WAT put/call walls show support near $300 and resistance near $400.
Waters Corp. — Where open interest creates price support and resistance
WAT put/call walls identify the strike prices with the highest open interest concentration, which often act as support and resistance levels for the underlying stock. The strongest put wall sits at $300 (support) and the strongest call wall at $400 (resistance).
Premium sellers use these wall levels to position short strikes near areas of high open interest, where price tends to slow or reverse. The current gamma exposure regime is positive, which typically dampens price moves and supports mean reversion. Max pain — the strike where total option losses are minimized — sits at $360.
Wall levels are derived from current open interest positioning and update daily after market close. They can shift as options traders open or close positions. For context on how WAT options are priced overall, see the WAT IV analysis and WAT VRP analysis.
Waters Corp. (WAT) is a Healthcare stock with actively traded listed options. Open interest concentrates at the $300 put wall (0.1K contracts) and $400 call wall (0.6K contracts) — 10.1% below and 19.8% above spot. Dealer hedging flows at these levels tend to dampen directional moves, reinforcing the wall corridor. This setup is more supportive of premium selling inside the wall range. WAT strategy builder.
Where options dealers' hedging flows create support and resistance — max pain at $360.
These levels show where price may find support or resistance based on open interest positioning. Large put walls can act as magnets; call walls can cap upside.
Use wall levels to pick strikes — sell puts near put walls, sell calls near call walls.
Wall = Strike with highest open interest concentration across expirationsOpen interest by strike, gamma exposure (GEX) profile, max pain calculation
ORATS open interest and gamma data, updated daily
Walls are based on current OI positioning and can shift as traders open/close positions. GEX assumes most OI is dealer-held — retail-heavy OI produces less hedging flow. Treat as context, not prediction.
Walls from nearest liquid expiry — these reflect short-term hedging activity and may not represent longer-term positioning.
OI change tracker (1-day), wall strength score, and GEX trend chart — in active development.
This data is free for all users. No paywall — just not built yet.
Quantitative screening, not investment advice. Verify with your broker. Disclaimer
Waters Corp.'s current open interest profile shows relatively light concentration on both sides — put activity at $300 (58 contracts) and calls at $400 (607) are below average for this expiration cycle. Scattered open interest means dealer hedging flows are less concentrated, reducing the "wall" effect that typically pins price within a range. Premium sellers should treat current support and resistance levels as softer than usual — wider stop losses and smaller position sizes are appropriate until open interest builds at specific strikes.
Waters Corp.'s current options landscape shows put support concentrated at $300 (58 contracts) with call resistance at $400 (607). This creates a $300–$400 trading corridor that dealer hedging activity naturally reinforces. Compare this wall-to-wall range with the Expected Move to see how volatility-based ranges align with open interest boundaries.
Waters Corp. is trading near its gamma exposure flip point at $330.00, where the net GEX of +0.0B could shift between positive and negative regimes with a relatively small price move. This transitional zone is the most unpredictable for premium sellers — dealer hedging behavior can change direction rapidly, making realized volatility erratic. Consider waiting for GEX to firmly establish in one regime before initiating new positions, or use small-sized defined-risk trades that won't be significantly impacted by a regime shift.
Waters Corp.'s options-defined support sits at the $300 put wall (58 OI), and resistance at the $400 call wall (607 OI). The full range is $300–$400, defined by the strikes where dealer hedging is concentrated.
Waters Corp.'s strongest put wall (support) is at $300 with 58 open interest contracts, and the primary call wall (resistance) is at $400 with 607 contracts. This creates a trading range of $300–$400. Call-side open interest dominates, creating stronger overhead resistance than downside support.
Open interest walls represent concentrations of options positions at specific strikes. When dealers hold these positions, they must hedge by buying or selling shares as price approaches wall levels, creating natural support (put walls) and resistance (call walls). Waters Corp. is near its gamma flip point, so the effectiveness of these walls can change quickly. When GEX is positive, walls are reinforced by dealer hedging; when negative, walls become less reliable.
Waters Corp.'s $300–$400 range spans 30.0%, wider than average. This spread suggests open interest is distributed across distant strikes, which can mean the market is pricing in a larger potential move — possibly around an upcoming catalyst like earnings or an industry event. For premium sellers, wider ranges mean wall support and resistance are farther from current price, providing more breathing room but also less concentrated dealer hedging at any single level.
Use the put wall at $300 as support for put credit spreads and the call wall at $400 as a ceiling for call credit spreads. The wall-to-wall range defines your expected trading corridor. Wall data is most useful for strike selection — placing short strikes at or outside major open interest levels means your trade has dealer hedging flows working in your favor. Monitor daily for wall migration as open interest shifts.
Waters Corp. has 10.47x more call open interest than put open interest at the primary wall levels. Call-heavy positioning can indicate bullish speculative interest (traders buying calls expecting upside) or heavy covered-call writing by shareholders. For premium sellers, this means call-side resistance is likely stronger than put-side support — call credit spreads above the $400 wall may benefit from heavier dealer selling pressure, while put-side trades have less concentrated support to rely on.