By Ainvest
in
block-monitor
β
28 Jul 2025
π Block Monitor End-of-Day Trading Summary - 2025-07-28
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
$1,388,403,822
Total Premium Value
728,906
Calls vs 378,094 Puts
Total Trades
161
Total Volume
1,107,000
Total Turnover
$1,388,403,822
π Top Tickers by Premium Value
#1 NVDA - $556,277,212 Total Premium π’
π Volume Analysis
Total Volume: 199,717 contracts
Average Trade Size: 7397 contracts
Largest Trade: 109,000 contracts
Current Stock Price: $174.94
π° Premium Analysis
Total Premium: $556,277,212
Bullish Premium: $248,680
Bearish Premium: $333,675,205
π Bearish ($333,426,525)
π Sentiment Flow
Call/Put Ratio: 1.00 π’
Buy/Sell Ratio: 0.00 π
OTM Volume: 0 contracts
π― Unusual Activity
Unusual Trades: 2
Large Premium Trades: 10
Peak Trading Hour: 11:00 ET
π₯ Top Trades by Premium
1. π SELL 90,000x $140 CALL 2025-09-19 (ITM) π¨
Premium: $333,450,000 | Price: $37.05
Time: 2025-07-28 10:26:54 ET
2. π UNKNOWN 109,000x $160 CALL 2025-09-19 (ITM) π¨
Premium: $220,725,000 | Price: $20.25
Time: 2025-07-28 10:26:54 ET
3. π UNKNOWN 150x $140 CALL 2025-09-19 (ITM) π¨
Premium: $569,700 | Price: $37.98
Time: 2025-07-28 14:54:03 ET
π Multi-Leg Strategies Detected
Call Spread - Total Premium: $554,175,000
Time: 2025-07-28 10:26:54 ET
Multi-Leg - Total Premium: $190,950
Time: 2025-07-28 11:55:41 ET
#2 TSM - $293,933,811 Total Premium π’
π Volume Analysis
Total Volume: 110,095 contracts
Average Trade Size: 13762 contracts
Largest Trade: 55,000 contracts
Current Stock Price: $242.46
π° Premium Analysis
Total Premium: $293,933,811
Bullish Premium: $128,183,975
Bearish Premium: $88,875
π Bullish ($128,095,100)
π Sentiment Flow
Call/Put Ratio: 1.00 π’
Buy/Sell Ratio: 1.00 π
OTM Volume: 0 contracts
π― Unusual Activity
Unusual Trades: 2
Large Premium Trades: 2
Peak Trading Hour: 11:00 ET
π₯ Top Trades by Premium
1. π UNKNOWN 55,000x $220 CALL 2025-10-17 (ITM) π¨
Premium: $165,550,000 | Price: $30.10
Time: 2025-07-28 11:03:35 ET
2. π BUY 55,000x $230 CALL 2025-10-17 (ITM) π¨
Premium: $128,150,000 | Price: $23.30
Time: 2025-07-28 11:03:35 ET
3. π SELL 25x $230 CALL 2025-10-17 (ITM)
Premium: $58,375 | Price: $23.35
Time: 2025-07-28 14:32:50 ET
π Multi-Leg Strategies Detected
Call Spread - Total Premium: $293,700,000
Time: 2025-07-28 11:03:35 ET
Multi-Leg - Total Premium: $83,952
Time: 2025-07-28 15:11:17 ET
#3 ORCL - $199,779,447 Total Premium π’
π Volume Analysis
Total Volume: 40,115 contracts
Average Trade Size: 6686 contracts
Largest Trade: 40,000 contracts
Current Stock Price: $244.56
π° Premium Analysis
Total Premium: $199,779,447
Bullish Premium: $25,500
Bearish Premium: $199,200,000
π Bearish ($199,174,500)
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: 10:00 ET
π₯ Top Trades by Premium
1. π SELL 40,000x $200 CALL 2025-10-17 (ITM) π¨
Premium: $199,200,000 | Price: $49.80
Time: 2025-07-28 10:47:19 ET
2. π UNKNOWN 93x $200 CALL 2025-10-17 (ITM) π¨
Premium: $466,767 | Price: $50.19
Time: 2025-07-28 10:58:32 ET
3. π UNKNOWN 6x $200 CALL 2025-10-17 (ITM)
Premium: $31,074 | Price: $51.79
Time: 2025-07-28 14:11:21 ET
π Multi-Leg Strategies Detected
Multi-Leg - Total Premium: $496,863
Time: 2025-07-28 10:58:32 ET
#4 AMZN - $156,668,157 Total Premium π’
π Volume Analysis
Total Volume: 45,235 contracts
Average Trade Size: 2827 contracts
Largest Trade: 27,300 contracts
Current Stock Price: $233.64
π° Premium Analysis
Total Premium: $156,668,157
Bullish Premium: $68,350
Bearish Premium: $337,495
π Bearish ($269,145)
π Sentiment Flow
Call/Put Ratio: 1.00 π’
Buy/Sell Ratio: 0.17 π
OTM Volume: 0 contracts
π― Unusual Activity
Unusual Trades: 2
Large Premium Trades: 3
Peak Trading Hour: 10:00 ET
π₯ Top Trades by Premium
1. π UNKNOWN 27,300x $200 CALL 2025-08-15 (ITM) π¨
Premium: $94,567,200 | Price: $34.64
Time: 2025-07-28 10:10:17 ET
2. π UNKNOWN 17,700x $200 CALL 2025-08-15 (ITM) π¨
Premium: $61,295,100 | Price: $34.63
Time: 2025-07-28 10:10:17 ET
3. π SELL 33x $200 CALL 2025-08-15 (ITM) π¨
Premium: $115,170 | Price: $34.90
Time: 2025-07-28 10:49:58 ET
π Multi-Leg Strategies Detected
Multi-Leg - Total Premium: $155,862,300
Time: 2025-07-28 10:10:17 ET
Multi-Leg - Total Premium: $307,120
Time: 2025-07-28 10:49:58 ET
#5 MSTR - $106,817,490 Total Premium π’
π Volume Analysis
Total Volume: 35,925 contracts
Average Trade Size: 11975 contracts
Largest Trade: 34,925 contracts
Current Stock Price: $408.71
π° Premium Analysis
Total Premium: $106,817,490
Bullish Premium: $25,650
Bearish Premium: $2,715,340
π Bearish ($2,689,690)
π Sentiment Flow
Call/Put Ratio: 1.00 π’
Buy/Sell Ratio: 0.01 π
OTM Volume: 0 contracts
π― Unusual Activity
Unusual Trades: 1
Large Premium Trades: 2
Peak Trading Hour: 11:00 ET
π₯ Top Trades by Premium
1. π UNKNOWN 34,925x $390 CALL 2025-08-15 (ITM) π¨
Premium: $104,076,500 | Price: $29.80
Time: 2025-07-28 11:47:23 ET
2. π SELL 991x $390 CALL 2025-08-15 (ITM) π¨
Premium: $2,715,340 | Price: $27.40
Time: 2025-07-28 14:24:32 ET
3. π BUY 9x $390 CALL 2025-08-15 (ITM)
Premium: $25,650 | Price: $28.50
Time: 2025-07-28 15:25:03 ET
π¨ Most Unusual Trades of the Day
#1 NVDA NVDA 20250919 140 CALL π
SELL 90,000 contracts @ $37.05
Spot Price: $174.94
Strike: $140.00
Expiration: 2025-09-19
Premium Value: $333,450,000
Moneyness: ITM (25.0%)
Unusual Factors: π₯ 85.1% of OI, π° Large Premium
Time: 2025-07-28 10:26:54 ET
#2 NVDA NVDA 20250919 160 CALL π
UNKNOWN 109,000 contracts @ $20.25
Spot Price: $175.03
Strike: $160.00
Expiration: 2025-09-19
Premium Value: $220,725,000
Moneyness: ITM (9.4%)
Unusual Factors: π₯ 136.1% of OI, π° Large Premium
Time: 2025-07-28 10:26:54 ET
#3 ORCL ORCL 20251017 200 CALL π
SELL 40,000 contracts @ $49.80
Spot Price: $244.56
Strike: $200.00
Expiration: 2025-10-17
Premium Value: $199,200,000
Moneyness: ITM (22.3%)
Unusual Factors: π₯ 96.7% of OI, π° Large Premium
Time: 2025-07-28 10:47:19 ET
#4 TSM TSM 20251017 220 CALL π
UNKNOWN 55,000 contracts @ $30.10
Spot Price: $242.44
Strike: $220.00
Expiration: 2025-10-17
Premium Value: $165,550,000
Moneyness: ITM (10.2%)
Unusual Factors: π₯ 95.1% of OI, π° Large Premium
Time: 2025-07-28 11:03:35 ET
#5 TSM TSM 20251017 230 CALL π
BUY 55,000 contracts @ $23.30
Spot Price: $242.46
Strike: $230.00
Expiration: 2025-10-17
Premium Value: $128,150,000
Moneyness: ITM (5.4%)
Unusual Factors: π₯ 1324.3% of OI, π° Large Premium
Time: 2025-07-28 11:03:35 ET
#6 MSTR MSTR 20250815 390 CALL π
UNKNOWN 34,925 contracts @ $29.80
Spot Price: $408.71
Strike: $390.00
Expiration: 2025-08-15
Premium Value: $104,076,500
Moneyness: ITM (4.8%)
Unusual Factors: π₯ 98.4% of OI, π° Large Premium
Time: 2025-07-28 11:47:23 ET
#7 AMZN AMZN 20250815 200 CALL π
UNKNOWN 27,300 contracts @ $34.64
Spot Price: $233.64
Strike: $200.00
Expiration: 2025-08-15
Premium Value: $94,567,200
Moneyness: ITM (16.8%)
Unusual Factors: π₯ 52.6% of OI, π° Large Premium
Time: 2025-07-28 10:10:17 ET
#8 AMZN AMZN 20250815 200 CALL π
UNKNOWN 17,700 contracts @ $34.63
Spot Price: $233.64
Strike: $200.00
Expiration: 2025-08-15
Premium Value: $61,295,100
Moneyness: ITM (16.8%)
Unusual Factors: π₯ 34.1% of OI, π° Large Premium
Time: 2025-07-28 10:10:17 ET
#9 XLB XLB 20250919 100 CALL π
UNKNOWN 22,500 contracts @ $0.27
Spot Price: $91.53
Strike: $100.00
Expiration: 2025-09-19
Premium Value: $607,500
Moneyness: OTM (-8.5%)
Unusual Factors: π₯ 5408.7% of OI, π° Large Premium
Time: 2025-07-28 10:19:26 ET
#10 IWM IWM 20250829 220 PUT π
UNKNOWN 30,676 contracts @ $3.66
Spot Price: $223.90
Strike: $220.00
Expiration: 2025-08-29
Premium Value: $11,227,416
Moneyness: ATM (1.8%)
Unusual Factors: π₯ 99.1% of OI, π° Large Premium
Time: 2025-07-28 13:56:14 ET
π Multi-Leg Strategy Analysis
AMZN 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: $200, $200
Strategy Legs (Total Premium: $155,862,300):
β’ UNKNOWN 27,300x
$200 CALL @ $34.64
β’ UNKNOWN 17,700x
$200 CALL @ $34.63
SMCI Strategies:
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 $55 and $55
Strategy Legs (Total Premium: $103,941):
β’ UNKNOWN 143x
$55 CALL @ $4.87
β’ BUY 70x
$55 CALL @ $4.90
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: $55, $55, $55
Strategy Legs (Total Premium: $6,864,488):
β’ UNKNOWN 11,179x
$55 CALL @ $3.98
β’ UNKNOWN 11,179x
$62 CALL @ $0.74
β’ UNKNOWN 2,000x
$55 CALL @ $3.97
β’ UNKNOWN 2,000x
$55 CALL @ $3.97
TSM 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, $230
Strategy Legs (Total Premium: $83,952):
β’ UNKNOWN 18x
$230 CALL @ $23.32
β’ UNKNOWN 18x
$230 CALL @ $23.32
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 $220 and $230
Strategy Legs (Total Premium: $293,700,000):
β’ UNKNOWN 55,000x
$220 CALL @ $30.10
β’ BUY 55,000x
$230 CALL @ $23.30
IWM Strategies:
Multi-Leg
Complex strategy with multiple option legs
Profits when: Depends on specific leg combination
π Market Bias: Bearish
View: Put-heavy buying suggests downside expectation
Volatility Bet: Medium volatility
π Put-Heavy Strategy: More put buying suggests bearish sentiment. Multiple strikes: $220, $220, $220
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 $216 and $218
Strategy Legs (Total Premium: $4,738,800):
β’ UNKNOWN 15,600x
$216 PUT @ $1.53
β’ BUY 12,000x
$218 PUT @ $1.96
HYG Strategies:
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 $69 and $69
Strategy Legs (Total Premium: $20,000):
β’ UNKNOWN 5,000x
$69 PUT @ $0.02
β’ SELL 10,000x
$69 PUT @ $0.01
π Market Sentiment Analysis
Overall Market Direction:
$137,656,066
Bullish Premium
$554,757,546
Bearish Premium
π Bearish
$417,101,480
Key Insights:
Most Bullish Flow: MSTR (call/put ratio: 1.00)
Most Bearish Flow: XLF (call/put ratio: 0.00)
Total Unusual Volume Trades: 76 (high volume relative to OI)
Total Large Premium Trades: 68 (>$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
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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: MSTR - research why institutions are positioning bullishly
π Most Bearish Flow: XLF - understand the bearish sentiment drivers
Remember: Use this data as ONE piece of your research puzzle, not as standalone trading signals!