QuantMyStocks Blog
Educational momentum market commentary — weekly recaps and notable moves across the S&P 500, 400, 600 and NASDAQ-100. Not investment advice.
Momentum Leaders Sold Off Hard Into Quarter-End
Storage and memory names held the top momentum ranks across large caps, but every single leader closed the week in the red.
Four Momentum Leaders Drop Hard on the Same Day
MXL, STX, VICR, and PENG each fell sharply Tuesday — a rough session for AI-adjacent momentum names across three indexes.
Storage stocks dominate momentum boards for week of July 12
STX, SNDK, and WDC swept the top of both the NDX and S&P 500 momentum tables, with PENG exploding 27% in small caps.
MU and INTC Hit Hard as Chip Sector Slides
Micron drops 10.57% and Intel falls 9.03% in a broad chip selloff — two of NASDAQ-100's top momentum names take a serious hit.
Honeywell Aerospace joins S&P 500 as ConAgra exits
Four index changes take effect late June 2026, headlined by Honeywell Aerospace entering the S&P 500 and ConAgra dropping out.
MXL and VICR lead a sharp semi surge on Monday
Four momentum leaders in the S&P 600 and S&P 400 each jumped 10–12% today, all tied to semiconductor equipment and chip infrastructure themes.
WDC drops 13% — what a sharp down day means for momentum
Western Digital fell 13.17% today, one of the steepest single-day drops among NASDAQ-100 momentum leaders.
NASDAQ-100 Drops Cognizant and Insmed in June Reshuffle
Two names exit the NASDAQ-100 effective June 22, 2026 — here's what the recomposition means for index-tracking flows.
Rocket Lab joins NASDAQ-100; Kennedy-Wilson cut from S&P 600
Rocket Lab and Insmed join the NASDAQ-100, while the S&P 600 swaps Kennedy-Wilson out for First Advantage.
WDC and VSH Both Drop Over 8% — Momentum Leaders Under Pressure
Two top-ranked momentum names, WDC and VSH, shed more than 8% today as sector-wide selling hits semiconductors and electronics.
NASDAQ-100 Adds Five Names, Drops Five in June Recomposition
Astera Labs, CoreWeave, Nebius, Rocket Lab, and Teradyne join the NASDAQ-100 on June 22 as Charter, Cognizant, Insmed, Verisk, and Zscaler exit.
VICR and MXL both surging — what's driving momentum's top movers
Vicor jumped 10.3% and MaxLinear 8.65% today. Here's what the news says and what momentum investors watch in moves like these.
S&P 400 Reshuffles Six Names in June Recomposition
Roku, Sirius XM, and four others join the S&P MidCap 400 this month; Flex, Masimo, and four more are dropped.
Memory and chip equipment stocks surge while market sells off
SNDK, INTC, PENG, and four other momentum leaders posted 8–12% gains Monday as semiconductors bucked a broad selloff.
Weekly Momentum Recap: Storage & Chip Stocks Dominate — 21 Jun 2026
AI-driven memory and semiconductor names swept momentum rankings this week across large- and small-cap US indices.