Arch Resources, Inc. Class A (ARCH) SEC filings

ARCH SEC filings moved a median of +0.17% by the close. ARCH SEC filings — 10-K, 10-Q, 8-K and the rest — each read against the price at its own news timestamp. Back to the ARCH overview →

26 measured ARCH SEC filing events.

Where these ARCH SEC filings landedvs 24 measured ARCH SEC filing reactions
ARCH SEC filingMiddle 50% · -0.58% to +1.78%Zero: 0.00%Median: +0.17%Median +0.17%-3.00%0+3.00%
Middle 50% of ARCH SEC filing reactions-0.58% to +1.78%
Median reaction (to close)+0.17%
Measured reactions24
Point-in-time · zero look-ahead

Half of the 24 ARCH SEC filing events with a measured close landed between -0.58% and +1.78%; 54% closed up.

DateHeadlineEvent5-minTo close
Form 8-K ARCH RESOURCES, INC. For: Jan 13SEC filing · Form 8-K——
Form S-8 POS ARCH RESOURCES, INC.SEC filing · Form S-8——
Form 8-K ARCH RESOURCES, INC. For: Jan 09SEC filing · Form 8-K-1.13%-5.03%
Form 8-K ARCH RESOURCES, INC. For: Jan 03SEC filing · Form 8-K-0.36%-0.22%
Form DEFM14A ARCH RESOURCES, INC.SEC filing · Form DEFM14A+0.00%-0.68%
Form 10-Q ARCH RESOURCES, INC. For: Sep 30SEC filing · Form 10-Q+0.52%+0.10%
Form 8-K ARCH RESOURCES, INC. For: Nov 05SEC filing · Form 8-K+3.88%+7.89%
Form 8-K ARCH RESOURCES, INC. For: Oct 14SEC filing · Form 8-K+0.67%-0.04%
Form SD ARCH RESOURCES, INC.SEC filing · Form SD-0.20%+0.75%
Form 8-K ARCH RESOURCES, INC. For: Aug 20SEC filing · Form 8-K-1.29%-8.10%
Form 10-Q ARCH RESOURCES, INC. For: Jun 30SEC filing · Form 10-Q+0.06%+0.24%
Form 8-K ARCH RESOURCES, INC. For: Jul 25SEC filing · Form 8-K-2.43%-2.86%
Form 8-K ARCH RESOURCES, INC. For: May 07SEC filing · Form 8-K-0.31%-0.23%
Form 10-Q ARCH RESOURCES, INC. For: Mar 31SEC filing · Form 10-Q+0.47%-0.19%
Form 8-K ARCH RESOURCES, INC. For: Apr 25SEC filing · Form 8-K-0.75%+1.58%
Form DEF 14A ARCH RESOURCES, INC. For: May 07SEC filing · Form DEF-0.06%+1.86%
Form DEFA14A ARCH RESOURCES, INC.SEC filing · Form DEFA14A-0.06%+1.86%
Form 8-K ARCH RESOURCES, INC. For: Mar 19SEC filing · Form 8-K-0.62%+2.45%
Form 8-K ARCH RESOURCES, INC. For: Mar 06SEC filing · Form 8-K+0.77%+1.84%
Form 8-K ARCH RESOURCES, INC. For: Feb 26SEC filing · Form 8-K+0.45%+1.09%
Form 8-K ARCH RESOURCES, INC. For: Feb 21SEC filing · Form 8-K+0.04%+4.68%
Form 8-K ARCH RESOURCES, INC. For: Feb 16SEC filing · Form 8-K-1.71%-0.90%
Form 10-K ARCH RESOURCES, INC. For: Dec 31SEC filing · Form 10-K+0.68%+0.40%
Form 8-K ARCH RESOURCES, INC. For: Feb 15SEC filing · Form 8-K-0.87%+1.76%
Form 10-Q ARCH RESOURCES, INC. For: Sep 30SEC filing · Form 10-Q-0.06%-0.55%
Form 8-K ARCH RESOURCES, INC. For: Oct 26SEC filing · Form 8-K-0.64%-0.69%
That’s how ARCH usually reacts to SEC filings — get an email when it moves on news →
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More ARCH: earnings → · analyst actions → · ARCH overview →

Other Basic Materials names and their SEC filings

Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not. These are each name’s all-news baseline, not its SEC filings — that is what the link opens.