Here are four momentum stocks looking higher. Harry Boxer is the founder of TheTechTrader.com, a live trading room with his stock picks, technical analysis, and live charts.

HealthEquity, Inc. (HQY) soared 11% to a new all-time high Tuesday, closing up $6.64 at $64.54 on extremely heavy volume of 2.8 million shares traded -- more than four times its average volume. The move came with a positive earnings announcement and 2019 outlook from the healthcare account management company. The long-term rising trendline points to a next target of $69. Zack's: HQY looks good. Stock adds 11.%% in session.

Nektar Therapeutics (NKTR) rose $2.19 to close at $107.20 on 3.4 million shares traded Tuesday. Early this month the stock popped on earnings and has since formed a beautiful bull wedge. On Monday the stock, which has risen 5-fold in the last 12 months, was added to the S&P 500 Index. A breakout above the previous high at $111.36 could send this stock into the mid-$120s.  Bloomberg: investors may be getting ahead of themselves with Nektar.

Square, Inc. (SQ) popped 5.7% to a new all-time high of $58.07 intraday Tuesday before closing at $57.69, up $3.11 on heavy volume of 17.2 million shares. Last week a report by Nomura Instinet compared the stock to the early days of Amazon, citing the company's push into, and further opportunities in, cryptocurrencies. Year to date the stock is up 66%. There may resistance at the $60 level, but if it breaks through there, price could reach $65. The Street: Why I'm cashing out of Square for now.

Upland Software, Inc. (UPLD) broke out of a bull flag consolidation and moved up 82 cents to close at $29.71 on 247,100 shares traded and no news from the company. The enterprise management software company announced a positive earnings surprise on March 8, and its stock price is up 30% in the last month.  With a close above the prior high at $30.44, the next target is $36. IBD: Upland adjusted profit, revenue top views, shares rise.

See Harry's video chart analysis on these stocks.

No holdings.

Harry Boxer is founder of TheTechTrader.com, a live trading room featuring his stock picks, technical market analysis, and live chart presentations.