By Ainvest
in
block-monitor
β
25 Jul 2025
π Block Monitor End-of-Day Trading Summary - 2025-07-25
Daily block monitor analysis featuring institutional trading activity and market movements. Educational content for investment research purposes only.
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End-of-Day Trading Summary: This report analyzes COMPLETED trades from the previous trading session. This is historical institutional options flow data and should not be used for real-time trading decisions.
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Investment Disclaimer: This report is for informational and educational purposes only and does not constitute investment advice. Past institutional activity does not predict future moves. Options trading involves significant risk of loss. Please consult with a financial advisor before making investment decisions.
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How to Read This Report: This analysis shows unusual options activity, including large trades, multi-leg strategies, and potential market sentiment signals. High volume relative to open interest often indicates significant institutional activity. Use this data for market research and educational purposes, not as trading signals.
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For Retail Investors: Use this data to understand market sentiment, identify institutional attention on specific stocks/sectors, research potential support/resistance levels, and learn about professional options strategies. Do NOT copy trades blindly - context and timing matter significantly.
π Executive Summary
$349,148,492
Total Premium Value
931,108
Calls vs 478,047 Puts
Total Trades
252
Total Volume
1,409,155
Total Turnover
$349,148,492
π Top Tickers by Premium Value
#1 NVDA - $167,236,291 Total Premium π’
π Volume Analysis
Total Volume: 180,942 contracts
Average Trade Size: 5170 contracts
Largest Trade: 25,000 contracts
Current Stock Price: $174.61
π° Premium Analysis
Total Premium: $167,236,291
Bullish Premium: $4,890,483
Bearish Premium: $57,649,600
π Bearish ($52,759,117)
π Sentiment Flow
Call/Put Ratio: 0.86 π’
Buy/Sell Ratio: 0.60 β‘οΈ
OTM Volume: 72,454 contracts
π― Unusual Activity
Unusual Trades: 13
Large Premium Trades: 11
Peak Trading Hour: 12:00 ET
π₯ Top Trades by Premium
1. π UNKNOWN 25,000x $134 CALL 2025-08-08 (ITM) π¨
Premium: $101,625,000 | Price: $40.65
Time: 2025-07-25 12:10:45 ET
2. π SELL 20,000x $150 CALL 2025-08-15 (ITM) π¨
Premium: $49,900,000 | Price: $24.95
Time: 2025-07-25 12:49:12 ET
3. π SELL 15,000x $175 CALL 2025-08-08 (ATM) π¨
Premium: $6,075,000 | Price: $4.05
Time: 2025-07-25 10:06:33 ET
π Multi-Leg Strategies Detected
Multi-Leg - Total Premium: $101,875,000
Time: 2025-07-25 12:10:45 ET
Multi-Leg - Total Premium: $12,450,000
Time: 2025-07-25 10:06:33 ET
#2 TSLA - $49,468,804 Total Premium π’
π Volume Analysis
Total Volume: 62,064 contracts
Average Trade Size: 1633 contracts
Largest Trade: 17,000 contracts
Current Stock Price: $314.99
π° Premium Analysis
Total Premium: $49,468,804
Bullish Premium: $689,260
Bearish Premium: $41,695,199
π Bearish ($41,005,939)
π Sentiment Flow
Call/Put Ratio: 0.61 π’
Buy/Sell Ratio: 0.42 β‘οΈ
OTM Volume: 62,064 contracts
π― Unusual Activity
Unusual Trades: 4
Large Premium Trades: 7
Peak Trading Hour: 12:00 ET
π₯ Top Trades by Premium
1. π SELL 17,000x $355 CALL 2025-11-21 (OTM) π¨
Premium: $41,055,000 | Price: $24.15
Time: 2025-07-25 10:59:37 ET
2. π UNKNOWN 17,000x $350 CALL 2025-08-15 (OTM) π¨
Premium: $6,375,000 | Price: $3.75
Time: 2025-07-25 10:59:37 ET
3. π BUY 300x $350 CALL 2025-08-15 (OTM) π¨
Premium: $157,500 | Price: $5.25
Time: 2025-07-25 12:10:11 ET
π Multi-Leg Strategies Detected
Call Spread - Total Premium: $47,430,000
Time: 2025-07-25 10:59:37 ET
Multi-Leg - Total Premium: $255,200
Time: 2025-07-25 12:13:23 ET
#3 ETN - $41,643,000 Total Premium π’
π Volume Analysis
Total Volume: 49,020 contracts
Average Trade Size: 12255 contracts
Largest Trade: 19,000 contracts
Current Stock Price: $390.08
π° Premium Analysis
Total Premium: $41,643,000
Bullish Premium: $3,450,000
Bearish Premium: $0
π Bullish ($3,450,000)
π Sentiment Flow
Call/Put Ratio: 1.00 π’
Buy/Sell Ratio: 1.00 π
OTM Volume: 34,000 contracts
π― Unusual Activity
Unusual Trades: 3
Large Premium Trades: 3
Peak Trading Hour: 10:00 ET
π₯ Top Trades by Premium
1. π UNKNOWN 15,000x $380 CALL 2025-09-19 (ITM) π¨
Premium: $35,295,000 | Price: $23.53
Time: 2025-07-25 10:12:33 ET
2. π BUY 15,000x $440 CALL 2025-09-19 (OTM) π¨
Premium: $3,450,000 | Price: $2.30
Time: 2025-07-25 10:12:33 ET
3. π UNKNOWN 19,000x $425 CALL 2025-08-15 (OTM) π¨
Premium: $2,850,000 | Price: $1.50
Time: 2025-07-25 10:47:43 ET
π Multi-Leg Strategies Detected
Call Spread - Total Premium: $38,745,000
Time: 2025-07-25 10:12:33 ET
#4 C - $30,187,500 Total Premium π’
π Volume Analysis
Total Volume: 52,500 contracts
Average Trade Size: 26250 contracts
Largest Trade: 50,000 contracts
Current Stock Price: $95.75
π° Premium Analysis
Total Premium: $30,187,500
Bullish Premium: $0
Bearish Premium: $1,437,500
π Bearish ($1,437,500)
π Sentiment Flow
Call/Put Ratio: 1.00 π’
Buy/Sell Ratio: 0.00 π
OTM Volume: 0 contracts
π― Unusual Activity
Unusual Trades: 1
Large Premium Trades: 2
Peak Trading Hour: 15:00 ET
π₯ Top Trades by Premium
1. π UNKNOWN 50,000x $90 CALL 2025-07-25 (ITM) π¨
Premium: $28,750,000 | Price: $5.75
Time: 2025-07-25 15:01:30 ET
2. π SELL 2,500x $90 CALL 2025-07-25 (ITM) π¨
Premium: $1,437,500 | Price: $5.75
Time: 2025-07-25 15:10:12 ET
#5 PLTR - $16,877,684 Total Premium π’
π Volume Analysis
Total Volume: 63,203 contracts
Average Trade Size: 2039 contracts
Largest Trade: 12,556 contracts
Current Stock Price: $159.51
π° Premium Analysis
Total Premium: $16,877,684
Bullish Premium: $295,159
Bearish Premium: $1,194,008
π Bearish ($898,849)
π Sentiment Flow
Call/Put Ratio: 1.00 π’
Buy/Sell Ratio: 0.13 π
OTM Volume: 2,660 contracts
π― Unusual Activity
Unusual Trades: 14
Large Premium Trades: 16
Peak Trading Hour: 12:00 ET
π₯ Top Trades by Premium
1. π UNKNOWN 12,556x $155 CALL 2025-07-25 (ITM) π¨
Premium: $5,825,984 | Price: $4.64
Time: 2025-07-25 09:55:00 ET
2. π UNKNOWN 12,556x $162 CALL 2025-08-01 (ATM) π¨
Premium: $3,440,344 | Price: $2.74
Time: 2025-07-25 09:55:00 ET
3. π UNKNOWN 5,250x $162 CALL 2025-08-01 (ATM) π¨
Premium: $1,239,000 | Price: $2.36
Time: 2025-07-25 11:32:10 ET
π Multi-Leg Strategies Detected
Multi-Leg - Total Premium: $10,434,036
Time: 2025-07-25 09:55:00 ET
Multi-Leg - Total Premium: $2,286,000
Time: 2025-07-25 12:56:51 ET
π¨ Most Unusual Trades of the Day
#1 NVDA NVDA 20250808 134 CALL π
UNKNOWN 25,000 contracts @ $40.65
Spot Price: $174.30
Strike: $134.00
Expiration: 2025-08-08
Premium Value: $101,625,000
Moneyness: ITM (30.1%)
Unusual Factors: π₯ 2500000.0% of OI, π° Large Premium
Time: 2025-07-25 12:10:45 ET
#2 ETN ETN 20250815 425 CALL π
UNKNOWN 19,000 contracts @ $1.50
Spot Price: $389.18
Strike: $425.00
Expiration: 2025-08-15
Premium Value: $2,850,000
Moneyness: OTM (-8.4%)
Unusual Factors: π₯ 633333.3% of OI, π° Large Premium
Time: 2025-07-25 10:47:43 ET
#3 INTC INTC 20250829 17.5 PUT π
SELL 41,532 contracts @ $0.12
Spot Price: $20.45
Strike: $17.50
Expiration: 2025-08-29
Premium Value: $498,384
Moneyness: OTM (16.9%)
Unusual Factors: π₯ 37416.2% of OI, π° Large Premium
Time: 2025-07-25 10:02:56 ET
#4 NVDA NVDA 20250808 134 PUT π
BUY 25,000 contracts @ $0.10
Spot Price: $174.30
Strike: $134.00
Expiration: 2025-08-08
Premium Value: $250,000
Moneyness: OTM (30.1%)
Unusual Factors: π₯ 27472.5% of OI, π° Large Premium
Time: 2025-07-25 12:10:46 ET
#5 ETN ETN 20250919 440 CALL π
BUY 15,000 contracts @ $2.30
Spot Price: $390.08
Strike: $440.00
Expiration: 2025-09-19
Premium Value: $3,450,000
Moneyness: OTM (-11.3%)
Unusual Factors: π₯ 25423.7% of OI, π° Large Premium
Time: 2025-07-25 10:12:33 ET
#6 EWZ EWZ 20250801 27.5 CALL π
BUY 59,000 contracts @ $0.16
Spot Price: $26.93
Strike: $27.50
Expiration: 2025-08-01
Premium Value: $944,000
Moneyness: OTM (-2.1%)
Unusual Factors: π₯ 19218.2% of OI, π° Large Premium
Time: 2025-07-25 14:18:05 ET
#7 SNV SNV 20250919 55 CALL π
UNKNOWN 20,000 contracts @ $1.25
Spot Price: $49.57
Strike: $55.00
Expiration: 2025-09-19
Premium Value: $2,500,000
Moneyness: OTM (-9.9%)
Unusual Factors: π₯ 13422.8% of OI, π° Large Premium
Time: 2025-07-25 12:43:31 ET
#8 AAOI AAOI 20250801 23 PUT π
BUY 21,580 contracts @ $0.35
Spot Price: $26.19
Strike: $23.00
Expiration: 2025-08-01
Premium Value: $755,300
Moneyness: OTM (13.9%)
Unusual Factors: π₯ 13158.5% of OI, π° Large Premium
Time: 2025-07-25 12:33:40 ET
#9 AAOI AAOI 20250801 28 CALL π
SELL 21,580 contracts @ $0.70
Spot Price: $26.19
Strike: $28.00
Expiration: 2025-08-01
Premium Value: $1,510,600
Moneyness: OTM (-6.5%)
Unusual Factors: π₯ 11181.3% of OI, π° Large Premium
Time: 2025-07-25 12:33:40 ET
#10 CNC CNC 20250919 22.5 PUT π
UNKNOWN 40,000 contracts @ $0.35
Spot Price: $27.10
Strike: $22.50
Expiration: 2025-09-19
Premium Value: $1,400,000
Moneyness: OTM (20.4%)
Unusual Factors: π₯ 8213.6% of OI, π° Large Premium
Time: 2025-07-25 09:36:00 ET
π Multi-Leg Strategy Analysis
TSLA Strategies:
Multi-Leg
Complex strategy with multiple option legs
Profits when: Depends on specific leg combination
π Market Bias: Bullish
View: Call-heavy buying suggests upside expectation
Volatility Bet: Medium volatility
π Call-Heavy Strategy: More call buying suggests bullish sentiment. Multiple strikes: $350, $350, $350
Put Spread
Bearish strategy betting on moderate downside
Profits when: Stock falls below the short put strike
π Market Bias: Neutral-Bearish
View: Directional put play
Volatility Bet: Medium volatility
π Complex Put Strategy: Mixed positioning with strikes at $160 and $160
Strategy Legs (Total Premium: $60,315):
β’ BUY 12,063x
$160 PUT @ $0.03
β’ UNKNOWN 12,063x
$160 PUT @ $0.02
Call Spread
Bullish strategy betting on moderate upside
Profits when: Stock rises above the short call strike
π Market Bias: Neutral-Bullish
View: Directional call play
Volatility Bet: Medium volatility
π Complex Call Strategy: Mixed positioning with strikes at $350 and $355
Strategy Legs (Total Premium: $47,430,000):
β’ SELL 17,000x
$355 CALL @ $24.15
β’ UNKNOWN 17,000x
$350 CALL @ $3.75
TEM Strategies:
Strangle
Volatility play with wider profit range than straddle
Profits when: Stock moves significantly beyond either strike
π― Market Bias: Range-Bound
View: Expecting stock to stay between $58-$68
Volatility Bet: LOW volatility bet
π― Short Strangle: Betting stock stays between $58 and $68. Profits from time decay.
Strategy Legs (Total Premium: $1,832,347):
β’ UNKNOWN 11,671x
$68 CALL @ $1.20
β’ UNKNOWN 11,671x
$58 PUT @ $0.37
NVDA Strategies:
Call Spread
Bullish strategy betting on moderate upside
Profits when: Stock rises above the short call strike
π Market Bias: Bullish
View: Expecting moderate rise to $180
Volatility Bet: Low-Medium volatility bet
π Bull Call Spread: Betting on stock rising from $174.38 toward $180. Max profit if stock closes above $180 at expiration.
Strategy Legs (Total Premium: $760,000):
β’ SELL 10,000x
$180 CALL @ $0.73
β’ BUY 10,000x
$178 CALL @ $0.03
Multi-Leg
Complex strategy with multiple option legs
Profits when: Depends on specific leg combination
β‘ Market Bias: Neutral/Volatility
View: Mixed strategy - direction unclear
Volatility Bet: Variable volatility bet
π Complex Multi-Leg: Balanced calls/puts suggest volatility play or hedge. Strikes: $134, $134
Strategy Legs (Total Premium: $101,875,000):
β’ UNKNOWN 25,000x
$134 CALL @ $40.65
β’ BUY 25,000x
$134 PUT @ $0.10
IWM Strategies:
Multi-Leg
Complex strategy with multiple option legs
Profits when: Depends on specific leg combination
π Market Bias: Neutral-Bearish
View: Call selling suggests range-bound or bearish
Volatility Bet: Low volatility
π Call-Selling Strategy: Call selling suggests expectation of limited upside. Strikes: $230, $245
Strategy Legs (Total Premium: $2,940,000):
β’ UNKNOWN 10,000x
$230 CALL @ $1.90
β’ UNKNOWN 10,000x
$245 CALL @ $1.04
PLTR Strategies:
Multi-Leg
Complex strategy with multiple option legs
Profits when: Depends on specific leg combination
π Market Bias: Neutral-Bearish
View: Call selling suggests range-bound or bearish
Volatility Bet: Low volatility
π Call-Selling Strategy: Call selling suggests expectation of limited upside. Strikes: $155, $160, $162
Strategy Legs (Total Premium: $10,434,036):
β’ UNKNOWN 12,556x
$155 CALL @ $4.64
β’ UNKNOWN 12,556x
$162 CALL @ $2.74
β’ SELL 12,556x
$160 CALL @ $0.93
Call Spread
Bullish strategy betting on moderate upside
Profits when: Stock rises above the short call strike
π Market Bias: Neutral-Bullish
View: Directional call play
Volatility Bet: Medium volatility
π Complex Call Strategy: Mixed positioning with strikes at $155 and $160
Strategy Legs (Total Premium: $67,440):
β’ BUY 496x
$160 CALL @ $0.75
β’ UNKNOWN 60x
$155 CALL @ $5.04
π Market Sentiment Analysis
Overall Market Direction:
$26,569,273
Bullish Premium
$110,842,544
Bearish Premium
Key Insights:
Most Bullish Flow: PLTR (call/put ratio: 1.00)
Most Bearish Flow: GLXY (call/put ratio: 0.00)
Total Unusual Volume Trades: 222 (high volume relative to OI)
Total Large Premium Trades: 99 (>$100k premium value)
π How Retail Investors Can Use This Data
π Market Sentiment Analysis
Heavy call buying = potential bullish sentiment
Large put activity = potential hedging or bearish sentiment
Use to gauge institutional mood, not as buy/sell signals
π― Support/Resistance Research
High volume strikes may act as magnets
Multiple institutions trading same strikes = potential levels
Combine with technical analysis for confluence
π Sector Rotation Insights
Which sectors are getting institutional attention?
Compare activity across different industries
Look for shifts in institutional focus over time
π Education & Strategy Learning
Study how professionals structure trades
Learn about different options strategies
Understand risk management techniques
β οΈ Critical Reminder
This is historical data for learning, not real-time trading signals!
Always do your own research and consult a financial advisor before making investment decisions.
π― Key Takeaways for Retail Traders
π
Data Timing & Usage Guidelines
End-of-Day Analysis: This report summarizes completed trades from the previous trading session
Best Use: Market research, sentiment analysis, and educational purposes
Not For: Real-time trading decisions or copy trading strategies
π₯ High Unusual Activity: Multiple trades with volume exceeding 10% of OI suggest institutional positioning for research
π° Large Premium Trades: Significant capital deployment indicates strong institutional conviction - study the context
π Most Bullish Flow: PLTR - research why institutions are positioning bullishly
π Most Bearish Flow: GLXY - understand the bearish sentiment drivers
Remember: Use this data as ONE piece of your research puzzle, not as standalone trading signals!