MarketPeel
Insider Trading Intelligence
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YX

Yinan Xiang

ACMR
DIRECTOR · ACM RESEARCH, INC. · CIK 0001721583
FILING MIX · LIFETIME0%/100%
BUYS
0
SELLS
19
TOTAL VALUE
$43.39M
COMPANIES
1
ACTIVE SINCE
Dec 2020
HOLDINGS NOW
1,357,799
AVG SELL PX
$83.45
TRADE KIND
SHOWING 19 / 19
Trades · vs SPY
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Performance · forward returns vs SPY
19 backtested trades · 8 horizons
Forward-return performance of every backtestable P/S trade by Yinan Xiang, measured at 8 horizons from 7 days to 2 years. Deduped per economic event so co-filings count once. Excess return = trade return minus SPY return over the same window.
HORIZONTRADESWIN RATEINSIDER RETURNSPY RETURNMEAN EXCESSMEDIAN EXCESST-STAT
7d19+68.42%-1.83%+0.18%-2.01%-2.24%—
14d19+10.53%+9.38%+1.13%+8.25%+6.91%—
30d19+0.00%+26.20%+0.99%+25.20%+24.22%—
60d19+0.00%+43.53%+2.26%+41.28%+24.57%—
90d19+0.00%+20.91%+5.99%+14.91%+17.68%—
180d19+57.89%+6.97%+5.68%+1.28%-4.11%—
1y19+89.47%-23.19%+7.56%-30.75%-29.14%—
2y19+100.00%-55.98%+4.21%-60.19%-56.38%—
How to read this: Insider Returnis the average raw return of the filer's trades over the horizon. SPY Return is what SPY did over those same windows — reference only, not a comparison. The headline alpha number is Mean Excess = Insider − SPY; green means the filer beat SPY, red means they trailed it. Win rate is the share of individual trades where the filer beat SPY. T-statvalues above 2 mean the alpha is unlikely to be chance given the sample size. "Pending" counts trades where the horizon hasn't elapsed yet; their stats are not included in the row average.
Holdings over time
ACMR · 1,357,799 shares · as of Aug 24, 2021
0411,642823,2841,234,9251,646,5672021SHARES HELD
Trading cadence · quarterly flow
BUY ● SELL ●
2020
2021
2021
2021
FLOW · 0 buys / 19 sellsCOVERAGE · 4 quarters
Form 4 filings · all activity
COMPANYTYPESHARESPRICEVALUEHELD AFTERTRADE DATEFILED
ACMR
ACM RESEARCH, INC.
SALE
11,629$88.97$1.03M1,146,170Aug 24, 2021Aug 24, 2021 ↗
ACMR
ACM RESEARCH, INC.
SALE
200,000$88.11$17.62M1,157,799Aug 24, 2021Aug 24, 2021 ↗
ACMR
ACM RESEARCH, INC.
SALE
33,000$86.08$2.84M1,357,799Aug 24, 2021Aug 24, 2021 ↗
ACMR
ACM RESEARCH, INC.
SALE
35,136$85.03$2.99M1,390,799Aug 23, 2021Aug 24, 2021 ↗
ACMR
ACM RESEARCH, INC.
SALE
25,136$85.06$2.14M1,427,411Aug 18, 2021Aug 20, 2021 ↗
ACMR
ACM RESEARCH, INC.
SALE
1,476$86.28$127.3K1,425,935Aug 18, 2021Aug 20, 2021 ↗
ACMR
ACM RESEARCH, INC.
SALE
3,623$85.10$308.3K1,452,547Aug 13, 2021Aug 13, 2021 ↗
ACMR
ACM RESEARCH, INC.
SALE
20,000$85.33$1.71M1,456,170Aug 12, 2021Aug 13, 2021 ↗
ACMR
ACM RESEARCH, INC.
SALE
1,600$89.17$142.7K1,478,670Aug 11, 2021Aug 13, 2021 ↗
ACMR
ACM RESEARCH, INC.
SALE
358$86.15$30.8K1,480,270Aug 11, 2021Aug 13, 2021 ↗
ACMR
ACM RESEARCH, INC.
SALE
25,542$85.53$2.18M1,480,628Aug 11, 2021Aug 13, 2021 ↗
ACMR
ACM RESEARCH, INC.
SALE
2,500$90.05$225.1K1,476,170Aug 11, 2021Aug 13, 2021 ↗
ACMR
ACM RESEARCH, INC.
SALE
14,920$75.00$1.12M1,506,170Dec 22, 2020Dec 22, 2020 ↗
ACMR
ACM RESEARCH, INC.
SALE
26,892$75.08$2.02M1,521,090Dec 21, 2020Dec 22, 2020 ↗
ACMR
ACM RESEARCH, INC.
SALE
82,454$75.30$6.21M1,549,681Dec 18, 2020Dec 22, 2020 ↗
ACMR
ACM RESEARCH, INC.
SALE
1,699$76.10$129.3K1,547,982Dec 18, 2020Dec 22, 2020 ↗
ACMR
ACM RESEARCH, INC.
SALE
3,214$75.02$241.1K1,632,135Dec 17, 2020Dec 17, 2020 ↗
ACMR
ACM RESEARCH, INC.
SALE
19,603$75.29$1.48M1,646,567Dec 15, 2020Dec 17, 2020 ↗
ACMR
ACM RESEARCH, INC.
SALE
11,218$76.03$852.9K1,635,349Dec 15, 2020Dec 17, 2020 ↗
Other insiders · ACMR
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About this filer
CIK 0001721583
ROLE
Director
PRIMARY
ACMR
COMPANIES
1
ACTIVE SINCE
Dec 2020
MARKETPEEL · /INSIDER/0001721583DATA · SEC EDGAR · FORM 4 · CONSOLIDATED TAPE
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