TOP TIERMARKET NEWSWIRE
Movers explained · September 13, 2026

Why Is DENISON MINES CORP (DNN) Stock Down Today?

By the Top Tier Newswire AI Desk · August 21, 2026 at 12:10 PM ET · reviewed against 0 wire stories

DENISON MINES CORP (DNN) is down -6.50% in the latest session.

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DNN stock is up 10.52% to $3.47 as of the latest trade, driven by a strong intraday rally following a significant opening gap. The stock opened at $3.21, already up 2.2% from the previous close, and climbed steadily throughout the session. The move coincides with the company beginning full-scale construction at its Phoenix In-Situ Recovery Uranium Project, a development that has drawn investor attention in the uranium sector.

What Happened

The stock opened with a gap up and reached a session high of $3.51 at 11:55 AM ET. Trading volume has surged to 26.3 million shares, which is 8.0 times the three-month average, indicating heightened investor interest. Denison Mines has been in the news recently for several developments, including the start of full-scale construction at its Phoenix project. Additionally, the company reported Q2 adjusted earnings per share of $(0.02), missing the $(0.01) estimate, and sales of $520,100, which fell short of the $48.24 million estimate. Despite these results, the stock has responded positively to the construction milestone.

What The Data Shows

The stock is currently trading within its 52-week range of $1.86 to $4.43. On August 21, the stock printed 11 fresh 52-week highs and one fresh 52-week low, indicating mixed sentiment across the broader market. DNN has a market capitalization of $2.9 billion and is unprofitable, with an EPS of -$0.22 over the trailing twelve months. Revenue has declined by 9.4% over the same period. The stock has a beta of 1.60, suggesting it is more volatile than the broader market.

What To Watch

Investors should monitor Denison Mines for further developments related to the Phoenix project and any additional corporate updates. The company is not currently scheduled to report earnings in the near term. Coverage of the stock has been limited, with only one story from one source in the last 36 hours. Broader market trends in the uranium sector may also influence investor sentiment.

AI-assisted analysis composed exclusively from headlines and data on the Top Tier newswire. Public view is delayed 4 hours from real time. Not financial advice.

DNN by the numbers

Last: $3.02Session: -6.50%Mkt cap: $2.9B52w: $1.86 to $4.43
DNN · Aug 21 session (5-min) · +12.42% vs prior close · updated 8:51 PM ET
$3.12$3.34$3.56prev close $3.14$3.537:05 AM10:17 AM1:30 PM4:42 PM7:55 PM7:05 AM · $3.217:10 AM · $3.217:20 AM · $3.227:25 AM · $3.217:35 AM · $3.227:40 AM · $3.228:05 AM · $3.208:10 AM · $3.218:20 AM · $3.218:30 AM · $3.218:40 AM · $3.218:45 AM · $3.209:00 AM · $3.239:15 AM · $3.229:20 AM · $3.239:25 AM · $3.239:30 AM · $3.339:35 AM · $3.409:40 AM · $3.389:45 AM · $3.419:50 AM · $3.429:55 AM · $3.4210:00 AM · $3.4010:05 AM · $3.4110:10 AM · $3.3810:15 AM · $3.3710:20 AM · $3.3710:25 AM · $3.3710:30 AM · $3.3810:35 AM · $3.3810:40 AM · $3.3810:45 AM · $3.3810:50 AM · $3.3810:55 AM · $3.4011:00 AM · $3.4211:05 AM · $3.4211:10 AM · $3.4311:15 AM · $3.4211:20 AM · $3.4311:25 AM · $3.4411:30 AM · $3.4711:35 AM · $3.4911:40 AM · $3.4811:45 AM · $3.5011:50 AM · $3.5011:55 AM · $3.5012:00 PM · $3.4912:05 PM · $3.4812:10 PM · $3.4812:15 PM · $3.4612:20 PM · $3.4912:25 PM · $3.5112:30 PM · $3.5212:35 PM · $3.5212:40 PM · $3.5312:45 PM · $3.5412:50 PM · $3.5212:55 PM · $3.501:00 PM · $3.491:05 PM · $3.501:10 PM · $3.481:15 PM · $3.481:20 PM · $3.461:25 PM · $3.461:30 PM · $3.461:35 PM · $3.461:40 PM · $3.461:45 PM · $3.481:50 PM · $3.461:55 PM · $3.462:00 PM · $3.462:05 PM · $3.462:10 PM · $3.462:15 PM · $3.462:20 PM · $3.472:25 PM · $3.472:30 PM · $3.462:35 PM · $3.462:40 PM · $3.482:45 PM · $3.482:50 PM · $3.482:55 PM · $3.503:00 PM · $3.503:05 PM · $3.503:10 PM · $3.503:15 PM · $3.503:20 PM · $3.503:25 PM · $3.503:30 PM · $3.503:35 PM · $3.503:40 PM · $3.513:45 PM · $3.503:50 PM · $3.503:55 PM · $3.514:00 PM · $3.514:05 PM · $3.494:10 PM · $3.524:15 PM · $3.504:20 PM · $3.504:25 PM · $3.524:30 PM · $3.504:45 PM · $3.504:50 PM · $3.504:55 PM · $3.505:05 PM · $3.505:10 PM · $3.505:20 PM · $3.505:25 PM · $3.525:30 PM · $3.505:35 PM · $3.525:40 PM · $3.505:45 PM · $3.525:50 PM · $3.525:55 PM · $3.526:05 PM · $3.506:10 PM · $3.506:20 PM · $3.506:25 PM · $3.526:30 PM · $3.507:00 PM · $3.537:10 PM · $3.507:15 PM · $3.537:25 PM · $3.537:30 PM · $3.537:35 PM · $3.537:40 PM · $3.537:50 PM · $3.537:55 PM · $3.53

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Earlier DNN move explainers: 2026-08-21