On Tuesday morning, 54 companies achieved new highs for the year.

Noteworthy Mentions:

• The largest company by market cap to set a new 52-week high was Costco Wholesale COST.
• The smallest company when considering market cap to set a new 52-week high was Equus Total Return EQS.
• PLx Pharma PLXP's stock made the biggest move upwards, moving 16.28% to reach a new 52-week high.

The following stocks set new 52-week highs during the first half-hour of trading on Tuesday:

• Costco Wholesale COST shares broke to a new 52-week high of $416.75 on Tuesday. Shares of the company traded up 0.5%.
• Moderna MRNA shares were up 6.55% on Tuesday morning to hit a new 52-week high of $335.85.
• Crown Castle Intl CCI shares were up 1.14% for the day, having made a 52-week high of $204.62.
• HCA Healthcare HCA stock made a new 52-week high of $249.58 Tuesday. The stock was up 11.21% for the day.
• IDEXX Laboratories IDXX shares were up 0.35% on Tuesday morning to hit a new 52-week high of $672.33.
• Dollar General DG shares broke to $227.16 on Tuesday, setting a new 52-week high with a change of up 0.95%.
• O'Reilly Automotive ORLY stock made a new 52-week high of $608.10 Tuesday. The stock was up 1.86% for the day.
• Hershey HSY stock set a new 52-week high of $182.22 Tuesday morning. Over the session, the stock traded up 1.23%.
• ResMed RMD shares achieved a new 52-week high on Tuesday morning, hitting $255.70 with a daily change of up 0.82%.
• SBA Communications SBAC stock on Tuesday broke to a yearly high of $337.98. Shares traded up 0.68%.
• Copart CPRT stock made a new 52-week high of $141.72 Tuesday. The stock was up 0.89% for the day.
• AvalonBay Communities AVB shares were up 1.78% on Tuesday to hit a new 52-week high of $227.75 for a change of up 1.78%.
• Equity Residential EQR shares broke to a new 52-week high of $84.06 on Tuesday. Shares of the company traded up 1.6%.
• Alexandria Real Estate ARE shares were up 1.23% on Tuesday to hit a new 52-week high of $194.68 for a change of up 1.23%.
• Slack Technologies WORK stock set a new 52-week high of $45.28 Tuesday morning. Over the session, the stock traded up 0.2%.
• Dover DOV shares reached a new 52-week high of $159.66 on Tuesday morning, moving up 4.53%.
• Mid-America Apartment MAA shares were up 1.33% for the day, having made a 52-week high of $185.68.
• Tyler Technologies TYL shares broke to a new 52-week high of $486.21 on Tuesday. Shares of the company traded up 0.36%.
• Duke Realty DRE stock set a new 52-week high of $51.06 Tuesday morning. Over the session, the stock traded up 1.61%.
• UDR UDR shares hit a yearly high of $53.98. The stock traded up 1.97% on the session.
• Equity Lifestyle Props ELS shares hit a yearly high of $81.54. The stock traded up 2.83% on the session.
• Alliant Energy LNT stock made a new 52-week high of $59.23 Tuesday. The stock was up 1.81% for the day.
• Camden Prop Trust CPT shares broke to $145.58 on Tuesday, setting a new 52-week high with a change of up 1.58%.
• Proofpoint PFPT stock made a new 52-week high of $174.79 Tuesday. The stock was up 0.03% for the day.
• Service Corp Intl SCI shares reached a new 52-week high of $57.96 on Tuesday morning, moving up 2.71%.
• AutoNation AN shares were up 5.58% for the day, having made a 52-week high of $113.09.
• Rexford Industrial Realty REXR shares hit a yearly high of $60.10. The stock traded up 2.15% on the session.
• Tenet Healthcare THC shares hit a yearly high of $71.56. The stock traded up 9.02% on the session.
• First Industrial Realty FR shares broke to a new 52-week high of $54.94 on Tuesday. Shares of the company traded up 1.67%.
• Legend Biotech LEGN shares were up 1.91% on Tuesday to hit a new 52-week high of $45.91 for a change of up 1.91%.
• Rapid7 RPD shares broke to a new 52-week high of $107.18 on Tuesday. Shares of the company traded up 3.12%.
• Idacorp IDA shares were up 2.14% on Tuesday to hit a new 52-week high of $105.08 for a change of up 2.14%.
• Agree Realty ADC stock on Tuesday broke to a yearly high of $74.10. Shares traded up 1.59%.
• W R Grace GRA shares were up 0.17% on Tuesday morning to hit a new 52-week high of $69.73.
• American States Water AWR shares broke to $87.10 on Tuesday, setting a new 52-week high with a change of up 1.82%.
• Prestige Consumer PBH shares set a new yearly high of $53.70 this morning. The stock was up 3.27% on the session.
• Covanta Holding CVA shares set a new 52-week high of $20.08 on Tuesday, moving up 0.13%.
• Heska HSKA shares were up 1.97% on Tuesday to hit a new 52-week high of $247.35 for a change of up 1.97%.
• Protagonist Therapeutics PTGX shares hit a yearly high of $48.15. The stock traded up 3.0% on the session.
• Erasca ERAS stock on Tuesday broke to a yearly high of $19.45. Shares traded up 5.77%.
• Centerspace CSR shares were up 1.84% on Tuesday morning to hit a new 52-week high of $87.89.
• HealthStream HSTM stock on Tuesday broke to a yearly high of $29.04. Shares traded up 2.72%.
• Plymouth Industrial REIT PLYM shares set a new 52-week high of $22.02 on Tuesday, moving up 1.82%.
• MBIA MBI stock on Tuesday broke to a yearly high of $11.51. Shares traded up 2.69%.
• One Liberty Properties OLP shares broke to a new 52-week high of $29.92 on Tuesday. Shares of the company traded up 2.31%.
• Artisan Acquisition ARTA shares were up 7.24% on Tuesday to hit a new 52-week high of $10.51 for a change of up 7.24%.
• PLx Pharma PLXP shares were up 16.28% on Tuesday morning to hit a new 52-week high of $20.11.
• Highland Global HGLB shares broke to $9.54 on Tuesday, setting a new 52-week high with a change of up 1.94%.
• MainStreet Bancshares MNSB shares broke to $24.83 on Tuesday, setting a new 52-week high with a change of up 6.14%.
• Aehr Test Systems AEHR shares reached a new 52-week high of $7.15 on Tuesday morning, moving down 3.92%.
• Luby's LUB shares achieved a new 52-week high on Tuesday morning, hitting $4.09 with a daily change of up 3.05%.
• Forward Pharma FWP shares achieved a new 52-week high on Tuesday morning, hitting $13.74 with a daily change of up 11.02%.
• HV Bancorp HVBC shares achieved a new 52-week high on Tuesday morning, hitting $22.21 with a daily change of up 1.28%.
• Equus Total Return EQS shares reached a new 52-week high of $2.91 on Tuesday morning, moving down 8.21%.

Be sure to monitor Benzinga for the news traders need!