Whale Activity Tracker

SNDK

Sandisk Corporation
2026-04-14 06:33
$952.50 +11.83% $140.6B
NEUTRAL — WATCH
No clear whale direction for SNDK. Bullish and bearish signals roughly cancel out. Strong institutional ownership at 82.6% with 6 of 10 top holders actively accumulating this quarter.
Action Plan
Options Flow
期权
LEAN BEARISH
1.12
Insider
内部交易
NEUTRAL
Smart Money
机构流向
LEAN BULLISH
60% accum
Short Interest
做空
LEAN BEARISH
8.6%
NEUTRAL
4.3/10
Whale Activity Rating
Distribution Neutral Accumulation
Options Flow: LEAN BEARISH
Institutional: LEAN BULLISH
Dark Pool: LEAN BEARISH
3/4 sources | Confidence: 72%
📈 Options Flow 期权异动
Unusual options volume vs open interest. High volume/OI ratio signals whale positioning. Put/Call ratio indicates directional bias.
PUT / CALL RATIO
0 (Bullish)1.02.0+ (Bearish)
1.12
LEAN BEARISH
CALL VOLUME
98,630
PUT VOLUME
110,381
TOTAL VOLUME
209,011
UNUSUAL STRIKES
0
High Volume Contracts — Vol > 500 (10 contracts)
TypeStrikeExpiryVolume
CALL$10002026-04-1710,352
PUT$8002026-04-176,232
PUT$4502026-04-175,846
PUT$4602026-04-175,024
CALL$9502026-04-174,725
CALL$9002026-04-174,441
PUT$8502026-04-173,696
PUT$9002026-04-173,265
CALL$12002026-04-173,261
CALL$11002026-04-173,059
P/C OI RATIO
0.0
TOTAL OI
5
CALL OI
5
PUT OI
0
🏦 Smart Money Flow 机构资金流向
Quarter-over-quarter position changes from 13F filings. Shows whether institutional investors are accumulating (buying more) or distributing (selling) — the strongest signal of whale conviction.
INSTITUTIONAL OWNERSHIP
82.6%
ACCUMULATION vs DISTRIBUTION
60% ACCUMULATING
40% DISTRIBUTING
NET SHARES FLOW
-3,114,008
FLOW SCORE
+0.10
ADDING
6
SELLING
1
Institutional Position Changes (QoQ)
ActionInstitution% HeldQoQ ΔShares Δ
▲▲ HEAVY BUYGeode Capital Management, LLC2.48%+44.9%+1,133,359
▲▲ HEAVY BUYState Street Corporation3.58%+20.7%+905,053
▲▲ HEAVY BUYArrowstreet Capital, Limited Partnership2.36%+31.3%+828,297
▲▲ HEAVY BUYShaw D.E. & Co., Inc.1.42%+63.1%+809,424
▲▲ HEAVY BUYNORGES BANK1.48%+24.9%+435,219
▲ ADDINGMorgan Stanley2.01%+7.2%+199,501
▬ HOLDBank of America Corporation1.11%-3.1%-52,104
▬ HOLDFMR, LLC14.54%-1.7%-369,016
▬ HOLDVanguard Group Inc11.50%-3.3%-584,790
▼▼ HEAVY SELLBlackrock Inc.6.52%-40.0%-6,418,951
ETF & Mutual Fund Flow (2 adding / 3 selling)
ActionFundQoQ ΔShares Δ
▼ TRIMMINGFidelity Mt. Vernon Street Trust-Fidelity Gro-19.0%-1,055,198
▬ HOLDVANGUARD INDEX FUNDS-Vanguard Total Stock Mar-0.1%-2,621
★ NEW POSIVANGUARD INDEX FUNDS-Vanguard 500 Index FundNEW+1,755,738
▬ HOLDVANGUARD INDEX FUNDS-Vanguard Small-Cap Index-3.8%-123,768
▲ ADDINGFidelity Concord Street Trust-Fidelity 500 In+6.2%+109,495
▬ HOLDiShares Trust-iShares Core S&P 500 ETF-0.9%-17,000
▬ HOLDSPDR S&P 500 ETF TRUST-State Street SPDR S&P +4.0%+66,003
▼▼ HEAVY SEVANGUARD WORLD FUND-Vanguard Information Tech-55.4%-1,565,295
▼▼ HEAVY SEFidelity Mt. Vernon Street Trust-Fidelity Gro-20.5%-299,941
▬ HOLDSELECT SECTOR SPDR TRT-State Street Technolog+4.2%+46,674
🕶 Short Interest & Dark Pool 做空 & 暗池
Short interest as % of float and days-to-cover. Rising SI = bearish pressure. High SI + decreasing = shorts covering (bullish). Squeeze risk rated by SI level.
SHORT INTEREST (% OF FLOAT)
0%10%20%30%+
SHORT % FLOAT
8.6%
DAYS TO COVER
0.4
SI CHANGE (MoM)
↑ 6.2%
SQUEEZE RISK
LOW
SHARES SHORT
8,092,994
PRIOR MONTH
7,617,435
FLOAT SHARES
139,062,948
AVG VOLUME
19,845,751
📡 Data Sources 数据来源
Options Flow
LEAN BEARISH (80%)
Insider Trading
NO DATA
Smart Money Flow
LEAN BULLISH (75%)
Short Interest
LEAN BEARISH (60%)
📋 Summary 综合摘要