Southwest Gas (SWX) Stock Chart & Stock Price History $78.29 +1.72 (+2.25%) Closing price 08/22/2025 03:59 PM EasternExtended Trading$78.22 -0.07 (-0.09%) As of 08/22/2025 05:25 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Southwest Gas Stock Price Performance The Southwest Gas (SWX) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 9.10%, with a year-to-date return of 10.72%. In the past month, the stock has decreased 0.18%, reflecting recent market activity. As of the latest close, Southwest Gas traded at $78.29 with a market cap of $5.64 billion and volume of 391,500 shares. Five years ago, the stock traded at $64.37, representing a 21.63% increase over that period. At the time, it had a market cap of $3.65 billion and a volume of 225,778 shares. Receive SWX Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Southwest Gas and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance+2.52%1 Month Performance-0.18%3 Month Performance+10.51%Year-To-Date Performance+10.72%1 Year Performance+9.10%5 Year Performance+21.63% SWX Stock Chart for Monday, August, 25, 2025 SWX Chart by TradingView Southwest Gas Stock Price History Daily Weekly Monthly Yearly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 3 Year 5 Year Time Frame Start Date End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization08/22/2025$76.52$78.29+2.31%$78.50$76.74391,500 shs$5.64 billion08/21/2025$76.37$76.52+0.20%$76.86$75.75275,192 shs$5.51 billion08/20/2025$76.59$76.37-0.29%$77.27$76.27330,057 shs$5.50 billion08/19/2025$76.97$76.59-0.50%$77.36$76.34404,591 shs$5.54 billion08/18/2025$77.69$76.97-0.93%$77.79$76.89324,936 shs$5.54 billion08/15/2025$79.55$77.69-2.34%$78.85$77.21564,619 shs$5.59 billion08/14/2025$79.94$79.55-0.49%$80.11$79.08298,602 shs$5.73 billion08/13/2025$79.78$79.94+0.21%$80.54$79.67314,446 shs$5.75 billion08/12/2025$78.97$79.78+1.02%$79.84$77.85268,758 shs$5.74 billion08/11/2025$78.38$78.97+0.76%$79.08$78.34287,645 shs$5.68 billion Get the Latest News and Ratings for SWX and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Southwest Gas and its competitors with MarketBeat's FREE daily newsletter. 08/08/2025$78.61$78.38-0.29%$79.00$77.84333,038 shs$5.64 billion08/07/2025$78.11$78.61+0.64%$78.99$78.00300,728 shs$5.65 billion08/06/2025$79.64$78.11-1.92%$79.80$76.81574,683 shs$5.62 billion08/05/2025$79.70$79.64-0.08%$79.84$78.63613,998 shs$5.73 billion08/04/2025$77.81$79.70+2.43%$79.83$77.95570,774 shs$5.73 billion08/01/2025$78.15$77.81-0.44%$78.88$77.40423,496 shs$5.60 billion07/31/2025$78.25$78.15-0.13%$78.50$77.53334,018 shs$5.62 billion07/30/2025$78.09$78.25+0.21%$78.87$78.05342,454 shs$5.63 billion07/29/2025$77.73$78.09+0.46%$78.52$77.55298,366 shs$5.62 billion07/28/2025$78.43$77.73-0.90%$78.20$77.65345,865 shs$5.59 billion07/25/2025$78.38$78.43+0.07%$78.62$77.66224,750 shs$5.64 billion07/24/2025$78.82$78.38-0.55%$79.04$78.17307,953 shs$5.64 billion Related Companies National Fuel Gas Stock Price Chart UGI Stock Price Chart NewJersey Resources Stock Price Chart Chesapeake Utilities Stock Price Chart Northwest Natural Gas Stock Price Chart ONEOK Stock Price Chart Atmos Energy Stock Price Chart ONE Gas Stock Price Chart Spire Stock Price Chart MDU Resources Group Stock Price Chart Receive SWX Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Southwest Gas and its competitors with MarketBeat's FREE daily newsletter. 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