Shares of online travel services companies were broadly lower Tuesday, with many hitting multi-month lows, as a continued surge in new COVID-19 cases fueled fears of potential travel restrictions. The ETFMG Travel Tech ETF /zigman2/quotes/216415466/composite AWAY -0.58% dropped 3.5%, and has shed 7.5% amid a 4-day losing streak, putting it on track for the lowest close since Dec. 23, 2020, as 32 of 34 equity components lost ground. In comparison, the S&P 500 /zigman2/quotes/210599714/realtime SPX -0.51% declined 0.9%. Among some of the ETF's online-booker components, shares of Expedia Group Inc. /zigman2/quotes/202291990/composite EXPE +0.85% slid 1.7%, TripAdvisor Inc. /zigman2/quotes/206118480/composite TRIP -2.59% dropped 3.0%; Despegar.com /zigman2/quotes/201115213/composite DESP -0.71% slumped 6.4% and Trivago N.V. /zigman2/quotes/205613957/composite TRVG +0.40% tumbled 8.0%, all toward six-month lows, while Booking Holdings Inc. /zigman2/quotes/203576210/composite BKNG -0.61% slipped 1.1%, but was above the July 19 closing low of $2,067.55. Shares of Travelzoo /zigman2/quotes/208830603/composite TZOO -2.93% , which provides travel information, declined 5.3%, and Sabre Corp. /zigman2/quotes/200765742/composite SABR -1.61% , which provides travel-booking technology, lost 1.4%. Elsewhere, the U.S. Global Jets ETF /zigman2/quotes/207744796/composite JETS -1.73% shed 2.6%, and has lost 6.1% amid a four-day losing streak, while cruise operator Carnival Corp.'s stock /zigman2/quotes/202325446/composite CCL -0.82% lost 3.2%, and has dropped 8.0%, also amid a 4-day loss streak.