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BSX Options Chain — Open Interest, Implied Volatility, Max Pain & Gamma Exposure

Analyze the complete BSX options chain including strike-level open interest, real-time implied volatility (IV), max pain levels, gamma exposure, dealer positioning, and options flow trends. This dashboard provides data-driven insights for traders building directional or hedging strategies around BSX.

Latest Data: 2025-12-23 (EDT)
Max Pain Price
99
Exp: 2025-12-26
Gamma Flip
95.28
Gamma Flip (≈60 days)
Put/Call OI Ratio
0.829
Shows put vs call positioning
IV Skew
-8.43
Put–call IV difference
Max Pain Price Volatility
σ = 4.05
low volatility

Dealer–Gamma Regime

A combined view of BSX’s total gamma exposure (GEX) and Dealer Position Index (DPI). This helps identify whether dealer hedging flows support mean reversion or trend continuation in the current options market.

Overall Market Regime
Mean Reversion Zone
Long Gamma · Strong Net Short Options · Low Volatility
Low Volatility Mean Reversion Bias DPI Trend: neutral

Gamma Exposure
Total GEX
54.37M
Gamma Regime
Long Gamma
Flip Threshold: 96

In a long gamma regime, dealers hedge against price moves, strengthening mean reversion and suppressing volatility.

Dealer Position Index (DPI)
Current DPI
0.172
Dealer Positioning
Strong Net Short Options
Trend Label: neutral

A Strong Net Short Options profile indicates how dealers hedge daily flows, influencing whether trends extend or revert.


Market Behavior (Gamma Flip–Based)

Price moves are likely to stay range-bound.

The short-term gamma flip is near 95.71 , with intermediate positioning around 95.28 . The mid-term gamma flip remains near 95.24.


Combined Interpretation

With Long Gamma and a neutral DPI trend , the current setup favors Mean Reversion Zone .

Dealer hedging flows interact with gamma positioning to form short-term volatility regimes. Stronger directional movement is more likely when gamma is short or unstable.

Volatility Environment
Low Volatility
Trend vs Mean Reversion
Mean Reversion Bias
Dealer Hedging Behavior
Strong Net Short Options

Options-Based Market Outlook & Short-Term Sentiment for BSX • As of 2025-12-23
Neutral Outlook (Confidence: 85%)

The options structure reflects a high-confidence neutral environment. Dealer positioning and volatility suppression suggest a stable range-bound setup rather than a directional move. A strong confidence score reflects high directional consensus—or, in the case of neutral bias, a stable volatility regime.


Put-Side Positioning Insight
On the put side, the bearish positioning looks mainly like hedging. This reflects caution and short-term protection rather than a true bearish call. Confidence: 83%


Key Price Levels: Support, Resistance & Pivot for BSX
The support levels for BSX are at 95.69, 95.09, and 93.86, while the resistance levels are at 96.49, 97.09, and 98.32. The pivot point, a key reference price for traders, is at 99.00.

Important intraday and swing-trading price levels derived from max pain, open interest distribution, and gamma positioning. These price levels are derived from Max Pain analysis, gamma exposure trends, and open interest dynamics, which are crucial factors for assessing market sentiment and potential price movements. Traders can use the support and resistance levels to identify key price zones for entry or exit points, while the pivot point serves as an important reference for gauging trend direction.


Option-Implied Price Range (DTE: 3)
Based on the latest options positioning (DTE 3), the ATM straddle implies a standardized 0.86% 1-day move.
The expected range for the next 3 days is 94.27 99.45 , corresponding to +3.50% / -1.89% .

Bullish flow suggests upside interest toward 102.08 (6.24% above spot).

Bearish positioning points to downside pressure toward 93.05 (3.16% below spot).

Options flow strength: 0.51 (0–1 scale).

ATM Strike: 96.00, Call: 0.65, Put: 0.77, Straddle Cost: 1.42.

Estimated using ATM implied volatility, OTM option flow, and dealer hedging conditions to capture the market-implied price range.

📘 Show Options Market Insight

1. Core Volatility Signal (0.86% Standardized 1-Day Move)

“The ATM straddle implies a standardized 1-day move of 0.86%.”

This means:

  • Implied volatility is below normal.
  • The market expects relatively muted price action.
  • Little near-term uncertainty is being priced.

📌 Plain interpretation: Subdued volatility — traders expect limited movement.

2. Expected Price Range (Next 3 Days)

The options market is pricing the following risk range:
94.27 – 99.45

Upper: +3.50%  •  Lower: -1.89%

🔺 Bullish Skew — upside potential outweighs downside risk.

3. Bullish Flow vs Bearish Flow

▶ Bullish Flow

Upside interest clusters near 102.08 (6.24% above spot).
This region may act as short-term resistance.

▶ Bearish Flow

Downside pressure clusters near 93.05 (3.16% below spot).
This is a downside “magnet zone” where put demand concentrates.

4. Flow Strength: 0.51

Flow strength is weak — option activity is scattered or light, making directional signals less reliable.

5. ATM Straddle Cost

The ATM straddle costs 1.42 (1.48% of spot).

This is within the normal volatility range for near-term expectations.

🔥 Professional Summary

1️⃣ The options market leans toward upside potential.
2️⃣ Implied volatility is within normal range for near-term movement.
3️⃣ Call activity dominates — traders position for upside moves.
4️⃣ FlowStrength 0.51 indicates moderate informational value.

⭐ One-sentence takeaway: The options market reflects a mild bullish tilt for BSX.

The insights are generated by an AI-driven options analysis model. We strongly recommend interpreting the data in the context of your own judgment and market understanding.

DPI Trend Index

Dealer Position Index (DPI) tracks how options dealers are positioned. Rising DPI → dealers long options (mean reversion). Falling DPI → dealers short options (trend amplification).
DPI does not predict direction. It only answers one question: once price moves, will the market reinforce that move? DPI reflects the direction and strength of dealer gamma exposure — not a bullish or bearish call.

Latest Trend Interpretation:

🔀 Volatility constriction, price is constrained by maker selling/support

Gamma Exposure & Expiry Risk Zones

Gamma Exposure (GEX) defines how option dealer hedging interacts with price moves. Large expiries can sharply alter hedging pressure and trigger volatility shifts.

Market GEX vs Price History

Aggregate gamma exposure plotted with underlying price. Sharp GEX declines or flip-zone tests often precede increased volatility.

GEX Danger Zone Overview
Symbol: BSX • Snapshot: 2025-12-23
Total GEX: 54.37M (Regime: Long Gamma (Mean Reversion / Low Volatility), Flip = 38.46M)
Max Danger Expiry: 2026-01-16 (DTE=24)
Expiry GEX: 28.12M (Contribution=51.7%)
Post-Expiry GEX: 26.25M (Regime: Gamma Flip Zone (High Trend Probability))
⚠ This expiry is CRITICAL: removal may push GEX into Flip Zone or weaken gamma support sharply.
Expiry DTE GEX Contrib % Post-Expiry GEX Post Regime Tag
2026-01-16 24 28.12M 51.7% 26.25M Gamma Flip Zone (High Trend Probability) Critical
2026-02-20 59 6.9M 12.7% 47.48M Long Gamma (Mean Reversion / Low Volatility)
2026-03-20 87 5.16M 9.5% 49.22M Long Gamma (Mean Reversion / Low Volatility)
2026-06-18 177 3.25M 6.0% 51.12M Long Gamma (Mean Reversion / Low Volatility)
2025-12-26 3 3.11M 5.7% 51.26M Long Gamma (Mean Reversion / Low Volatility)
2026-01-02 10 1.71M 3.1% 52.66M Long Gamma (Mean Reversion / Low Volatility)
2026-01-23 31 1.51M 2.8% 52.86M Long Gamma (Mean Reversion / Low Volatility)
2026-01-09 17 1.41M 2.6% 52.97M Long Gamma (Mean Reversion / Low Volatility)
2027-01-15 388 1.35M 2.5% 53.02M Long Gamma (Mean Reversion / Low Volatility)
2026-05-15 143 1.03M 1.9% 53.35M Long Gamma (Mean Reversion / Low Volatility)
2026-09-18 269 288.27K 0.5% 54.08M Long Gamma (Mean Reversion / Low Volatility)
2026-12-18 360 272.98K 0.5% 54.1M Long Gamma (Mean Reversion / Low Volatility)
2026-01-30 38 175.06K 0.3% 54.2M Long Gamma (Mean Reversion / Low Volatility)
2027-06-17 541 61.94K 0.1% 54.31M Long Gamma (Mean Reversion / Low Volatility)
2028-01-21 759 29.58K 0.1% 54.34M Long Gamma (Mean Reversion / Low Volatility)
2026-08-21 241 453 0.0% 54.37M Long Gamma (Mean Reversion / Low Volatility)

Vanna Exposure & Risk Zone

Vanna measures how delta changes when implied volatility shifts. Heavy negative Vanna clusters can amplify volatility during IV shocks.

Current Vanna Exposure Overview
Symbol: BSX • Snapshot: 2025-12-23
Total Vanna
-235.31K
Net delta–vol sensitivity
Vanna Regime
Negative Vanna (Trend Amplifying)
Sensitivity to IV shocks
Max Danger Expiry
2026-01-23 (DTE 31)
Contribution: 233.1%
Large negative Vanna clusters increase hedging pressure during volatility spikes, amplifying directional trends.
Vanna Danger Zone Details
Symbol: BSX • Snapshot: 2025-12-23
Total Vanna: -235.31K ( Negative Vanna )
Max Danger Expiry: 2026-01-23 (DTE=31)
Expiry Vanna: -548.42K (Contribution=233.1%)
Post-Expiry Vanna: 313.11K (More Positive — Volatility Dampening)
⚠ This expiry is CRITICAL: removal can sharply increase net negative Vanna, raising volatility sensitivity.
Expiry DTE Vanna Contrib % Post-Expiry Post Regime Tag
2026-01-23 31 -548.42K 233.1% 313.11K More Positive (Stabilizing) Critical
2026-01-16 24 -505.41K 214.8% 270.1K More Positive (Stabilizing) Critical
2026-02-20 59 445.07K 189.1% -680.39K More Negative (Trend Risk ↑)
2026-06-18 177 280.67K 119.3% -515.98K More Negative (Trend Risk ↑)
2025-12-26 3 176.14K 74.9% -411.46K More Negative (Trend Risk ↑)
2026-01-09 17 -92.89K 39.5% -142.42K More Negative (Trend Risk ↑)
2026-01-02 10 -87.65K 37.2% -147.66K More Negative (Trend Risk ↑)
2027-01-15 388 53.96K 22.9% -289.27K More Negative (Trend Risk ↑)
2026-05-15 143 23.16K 9.8% -258.48K More Negative (Trend Risk ↑)
2026-12-18 360 -19.85K 8.4% -215.47K More Negative (Trend Risk ↑)
2026-01-30 38 15.48K 6.6% -250.79K More Negative (Trend Risk ↑)
2027-06-17 541 11.69K 5.0% -247K More Negative (Trend Risk ↑)
2026-03-20 87 7.78K 3.3% -243.09K More Negative (Trend Risk ↑)
2026-09-18 269 6.31K 2.7% -241.62K More Negative (Trend Risk ↑)
2028-01-21 759 -1.48K 0.6% -233.83K More Negative (Trend Risk ↑)
2026-08-21 241 116 0.0% -235.43K More Negative (Trend Risk ↑)

Volatility Structure & Term Structure

Short-dated and medium-term implied volatility, term structure shape, downside skew, and realized volatility context.

ATM IV Term Structure Snapshot
Symbol: BSX • As of 2025-12-23
30D ATM IV
27.98%
Front-end implied volatility
90D ATM IV
26.80%
Medium-term volatility anchor
IV Ratio (90D / 30D)
0.96
Long-term vs short-term IV
Term Structure Regime
Backwardation (Short-term Elevated)
Slope: -1.18 pts (30D→90D).

Smile Slope (Put25 – Call25)
3.74%
Downside skew / crash premium
HV 21D vs IV
HV 21D: 23.12%
IV – HV: 4.87%
Options trade richer than realized volatility.
IV Percentile / Rank
Percentile: 84.2%
Rank: 100.0%
Relative to 1-year history.
IV Z-Score
0.93
Deviation vs recent average

ATM IV Term Structure

30D · 90D

IV vs Realized Volatility

HV 21D vs 30D IV
A backwardation curve indicates front-end implied volatility is elevated relative to longer-dated volatility. Smile slope reflects downside protection demand, while IV percentile and rank show how current IV compares to its own history.

BSX Max Pain — Daily Levels, Trend, Volatility Pressure & Options Positioning

Daily Max Pain levels with trend shifts, volatility pressure and options positioning cycles.

Max Pain Price Trend Index

Latest Trend Interpretation

Max Pain is stable, reflecting neutral options positioning.

➖ Trend strength: Very weak — no meaningful direction.

➖ Recent movement: Largely unchanged.

Trend Shifts

Green = Bullish • Dark Green = Strong Bullish • Gray = Neutral • Red = Bearish • Dark Red = Strong Bearish

Current OI Structure Reliability

OI Concentration / Pain Reliability · Dec 23 2025
Reliability: 36.5 (weak)
Max Pain @ 99.00 | Concentration=0.07 · Symmetry=0.76 · Sharpness=1.09
Reason
OI distribution is weak or irregular — Max Pain signal not reliable.
Advice
Avoid relying on Max Pain alone — options OI structure is not dominant.

Max Pain Price Mean Reversion

Latest Mean Reversion Status
Dec 23 2025
Neutral (Z = -0.72)
Price is near Max Pain, showing balanced options pressure.
Price vs Max Pain Distance
Show Mean Reversion History
Date Price Max Pain Distance Z-Score Signal
2025-12-23 96.09 99.00 -2.91 -0.72 neutral
2025-12-22 96.43 99.00 -2.57 -0.63 neutral
2025-12-19 95.61 105.00 -9.39 -2.32 oversold
2025-12-18 96.11 104.00 -7.89 -1.95 oversold
2025-12-17 94.48 104.00 -9.52 -2.35 oversold
2025-12-16 92.95 104.00 -11.05 -2.73 oversold
2025-12-15 92.19 104.00 -11.81 -2.92 oversold
2025-12-12 92.58 100.00 -7.42 -1.83 oversold
2025-12-11 91.75 100.00 -8.25 -2.04 oversold
2025-12-10 92.70 100.00 -7.30 -1.80 oversold
2025-12-09 92.53 100.00 -7.47 -1.84 oversold
2025-12-08 93.84 103.00 -9.16 -2.26 oversold
2025-12-05 97.52 94.00 3.52 0.87 neutral
2025-12-04 97.72 94.00 3.72 0.92 neutral
2025-12-03 98.57 94.00 4.57 1.13 overbought
2025-12-02 99.02 94.00 5.02 1.24 overbought
2025-12-01 101.01 94.00 7.01 1.73 overbought
2025-11-28 101.58 93.00 8.58 2.12 overbought
2025-11-26 100.96 102.00 -1.04 -0.26 neutral
2025-11-25 101.36 100.00 1.36 0.34 neutral
2025-11-24 98.04 100.00 -1.96 -0.48 neutral
2025-11-21 96.88 108.00 -11.12 -2.75 oversold
2025-11-20 96.60 107.00 -10.40 -2.57 oversold
2025-11-19 97.01 107.00 -9.99 -2.47 oversold
2025-11-18 99.22 107.00 -7.78 -1.92 oversold
2025-11-17 101.76 107.00 -5.24 -1.29 oversold
2025-11-14 102.69 102.00 0.69 0.17 neutral
2025-11-13 104.98 102.00 2.98 0.74 neutral
2025-11-12 104.13 101.00 3.13 0.77 neutral
2025-11-11 102.50 101.00 1.50 0.37 neutral
2025-11-07 100.02 100.00 0.02 0.00 neutral
2025-11-06 99.05 100.00 -0.95 -0.23 neutral
2025-11-05 98.90 100.00 -1.10 -0.27 neutral
2025-11-04 98.84 100.00 -1.16 -0.29 neutral
2025-11-03 98.59 96.00 2.59 0.64 neutral
2025-10-31 100.72 104.00 -3.28 -0.81 neutral
2025-10-30 100.57 104.00 -3.43 -0.85 neutral
2025-10-29 100.30 104.00 -3.70 -0.91 neutral
2025-10-28 100.97 104.00 -3.03 -0.75 neutral

Mean Reversion Backtest

Backtest Summary
Total Signals: 19 (Long: 15 · Short: 4)
1-Day Performance
Avg Return: 0.16%
Win Rate: 63.2%
3-Day Performance
Avg Return: 1.39%
Win Rate: 72.2%
Show Last 10 Trades
Date Signal Side Entry 1D Ret 3D Ret
2025-12-19 oversold long 95.61 0.86% 0.00%
2025-12-18 oversold long 96.11 -0.52% -0.02%
2025-12-17 oversold long 94.48 1.73% 2.06%
2025-12-16 oversold long 92.95 1.65% 2.86%
2025-12-15 oversold long 92.19 0.82% 4.25%
2025-12-12 oversold long 92.58 -0.42% 2.05%
2025-12-11 oversold long 91.75 0.90% 1.31%
2025-12-10 oversold long 92.70 -1.02% -0.55%
2025-12-09 oversold long 92.53 0.18% 0.05%
2025-12-08 oversold long 93.84 -1.40% -2.23%

Historical Max Pain Effectiveness

Based on historical behavior (not current OI)
No Historical Effectiveness
Little to no historical alignment between price action and Max Pain.
Win Rate
1D: 63.2%
3D: 73.7%
Reversion Strength
0.11
Noise Score
0.83
Score (Win)
27.8 / 40
Score (Strength)
4.6 / 40
Score (Noise)
16.6 / 20
Historical Effectiveness Score: 48.9 (neutral)
Disclaimer

Our analysis incorporates options market microstructure, institutional flow patterns, gamma and vanna dynamics, and dealer hedging models. The analytics and insights provided on this page are generated from a multi-factor options microstructure model, supported by WhaleQuant’s AI forecasting framework. These results reflect structural dynamics such as dealer positioning, hedging flows, volatility regimes, open interest concentration, and term structure behavior.

The outputs shown—including bias assessments and confidence scores—represent directional tendencies based on option market structure and should not be interpreted as price predictions, probability forecasts, or investment advice. Market conditions can change rapidly, and all analyses are provided for informational purposes only.