NASDAQ · ARQ

Arq, Inc.

Industrials · Industrial - Pollution & Treatment Controls

$2.11

Down-$0.05 (-2.14%)

Updated Sep 17, 2026, 10:35 PM

SID Score

2.5/10

Composite research score

Smart Money

—

Institutional and insider signal

Price performance

ARQ price history

1M range · 20 trading sessions · Daily adjusted prices

Daily close

View OHLC price history

ARQ OHLC price history, latest 40 sessions
Date	Open	High	Low	Close	Volume
Sep 16, 2026	$2.07	$2.12	$2.0434	$2.105	122.46K
Sep 15, 2026	$2.16	$2.18	$2.035	$2.07	217.29K
Sep 14, 2026	$2.17	$2.22	$2.13	$2.14	166.6K
Sep 11, 2026	$2.23	$2.245	$2.1709	$2.20	126.38K
Sep 10, 2026	$2.18	$2.24	$2.155	$2.23	109.73K
Sep 9, 2026	$2.25	$2.2595	$2.15	$2.18	171.57K
Sep 8, 2026	$2.31	$2.3415	$2.21	$2.21	76.33K
Sep 4, 2026	$2.25	$2.305	$2.20	$2.30	172.72K
Sep 3, 2026	$2.20	$2.27	$2.145	$2.265	199.4K
Sep 2, 2026	$2.05	$2.21	$2.05	$2.20	368.29K
Sep 1, 2026	$2.10	$2.12	$1.9841	$2.05	885.85K
Aug 31, 2026	$2.14	$2.165	$2.08	$2.12	199.37K
Aug 28, 2026	$2.20	$2.23	$2.145	$2.16	125.17K
Aug 27, 2026	$2.225	$2.225	$2.15	$2.20	141.01K
Aug 26, 2026	$2.17	$2.17	$2.10	$2.15	181.93K
Aug 25, 2026	$2.21	$2.27	$2.16	$2.17	185.25K
Aug 24, 2026	$2.30	$2.3899	$2.165	$2.21	159.6K
Aug 21, 2026	$2.29	$2.33	$2.22	$2.30	139.05K
Aug 20, 2026	$2.14	$2.26	$2.14	$2.26	208.19K
Aug 19, 2026	$2.22	$2.37	$2.15	$2.17	401.61K