NEUTRAL — WATCH
No clear whale direction for SNDK. Bullish and bearish signals roughly cancel out. Short interest at 11.4% of float — moderate bearish positioning. Insiders are net buyers (25,029 shares bought vs 7,796 sold) — bullish conviction from management. Strong institutional ownership at 80.8% with 7 of 10 top holders actively accumulating this quarter.
Action Plan
- Hold existing positions — no strong directional signal
- Wait for clearer whale activity before adding
- Monitor next earnings for institutional positioning changes
📈 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)
1.24
LEAN BEARISH
High Volume Contracts — Vol > 500 (10 contracts)
CALL$15502026-05-227,590
CALL$16002026-05-227,542
CALL$15002026-05-226,012
PUT$12502026-06-185,152
PUT$14002026-05-224,097
PUT$13002026-05-223,494
PUT$11002026-06-183,489
PUT$8002026-05-293,128
CALL$16502026-05-222,733
CALL$18002026-05-292,499
- Put/Call volume ratio: 1.24 (bearish)
- Total options volume: 218,449 (calls 97,310 / puts 121,139)
👤 Insider Trading 内部交易
SEC Form 4 filings — officer and director buys/sells in the last 90 days. Net buying is a strong bullish signal.
Recent Insider Transactions (0 buys / 4 sells / 6 grants)
SELLPOKORNY MICHAEL2,4462026-05-12
SELLSAYINER NECIP5792026-05-08
SELLSUZUKI MIYUKI3,5002026-02-25
GRANTBRADLEY ALEXANDER R.8632025-12-30
SELLSAYINER NECIP1,2712025-12-03
GRANTSAYINER NECIP9792025-11-18
GRANTCAULFIELD THOMAS9792025-11-18
GRANTKUMAR DEVINDER9792025-11-18
GRANTSHOOK ELLYN J9792025-11-18
GRANTSUZUKI MIYUKI9792025-11-18
- Insider buying: 25,029 shares
- Insider selling: 7,796 shares
- 16 Form 4 filings in last 90 days
- Net insider BUYING — bullish signal
🏦 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
80.8%
ACCUMULATION vs DISTRIBUTION
70% ACCUMULATING
30% DISTRIBUTING
NET SHARES FLOW
+1,644,201
Institutional Position Changes (QoQ)
★ NEW POSITIONVanguard Capital Management LLC6.43%NEW+4,763,059
★ NEW POSITIONVanguard Portfolio Management LLC2.42%NEW+1,788,243
★ NEW POSITIONGoldman Sachs Group Inc1.38%NEW+1,383,889
★ NEW POSITIONJane Street Group, LLC1.21%NEW+941,507
▲ ADDINGBlackrock Inc.7.03%+8.1%+778,646
▲ ADDINGGeode Capital Management, LLC2.84%+15.2%+556,803
▲ ADDINGState Street Corporation3.76%+5.5%+292,081
▬ HOLDMorgan Stanley1.92%-4.4%-130,998
▼ TRIMMINGArrowstreet Capital, Limited Partnership1.91%-18.8%-653,825
▼▼ HEAVY SELLFMR, LLC9.04%-37.6%-8,075,204
ETF & Mutual Fund Flow (2 adding / 1 selling)
▬ HOLDVANGUARD INDEX FUNDS-Vanguard Total Stock Mar-0.1%-2,621
★ NEW POSIVANGUARD INDEX FUNDS-Vanguard 500 Index FundNEW+1,755,738
▼▼ HEAVY SEFidelity Mt. Vernon Street Trust-Fidelity Gro-22.5%-1,015,676
▬ HOLDVANGUARD INDEX FUNDS-Vanguard Small-Cap Index-3.8%-123,768
★ NEW POSIInvesco QQQ Trust, Series 1NEW+1,579,598
▬ HOLDiShares Trust-iShares Core S&P 500 ETF+0.8%+15,617
▬ HOLDFidelity Concord Street Trust-Fidelity 500 In+0.3%+6,574
▬ HOLDSPDR S&P 500 ETF TRUST-State Street SPDR S&P +3.0%+52,144
▬ HOLDVANGUARD WORLD FUND-Vanguard Information Tech+2.5%+32,184
▬ HOLDSELECT SECTOR SPDR TRT-State Street Technolog+2.3%+25,470
- Institutional ownership: 80.8%
- Smart money flow: 7 adding / 2 selling / 1 hold
- Net shares added by institutions: +1,644,201
- Biggest mover: FMR, LLC sold 8,075,204 shares (-37.6%)
🕶 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%+
Elevated short interest — bears have a notable position. Watch for SI trend direction as the key signal.
- Short interest: 11.4% of float
- Days to cover: 0.7
- Short interest MoM: ↑ 34.3%
- Squeeze risk: MODERATE