Core Viewpoint - The S&P 500 may achieve a rare milestone of delivering a gain of at least 15% for three consecutive years, a feat that has only occurred eight times in the last 100 years [2][3][5]. Historical Performance - The S&P 500, established in its current form in 1957, has historically gained at least 15% roughly half the time since its inception as a daily index in 1926 [4]. - Achieving three consecutive years of 15% or more gains has only happened four times since the S&P 500 was formed [5]. - The first three-year streak occurred between 1942 and 1944, followed by a 36% gain in 1945, but was followed by an approximate 8% decline in 1946 [6][7]. - Another streak occurred from 1949 to 1951, with an 18% gain in 1952, but the market saw a nearly 1% decline in 1953 [8]. - There is no clear historical pattern regarding the performance of the S&P 500 in the fourth year following a three-year hot streak [9].