Monolithic Power Systems, Inc.

1. 01

   Below its 50- and 200-day averages

   The 4 Nov 2026 close of $1,261.08 was 1.0% below its 50-day average ($1,273.25) and 4.5% below its 200-day average ($1,320.02). It has closed below the 200-day for 1 session, since 4 Nov 2026. The 50-day average crossed below the 200-day on 19 Oct 2026, 12 sessions ago.

   Daily closes, split-adjusted; 50- and 200-session simple averages · as of 4 Nov 2026

2. 02

   Ahead of SPY and its sector fund XLK over 1 year

   1 month: −14.4% (SPY −1.6%, XLK −12.6%). 3 months: −6.3% (SPY −0.4%, XLK −5.1%). 1 year: +31.7% (SPY +13.6%, XLK +20.1%). Price change to the 4 Nov 2026 close; dividends excluded.

   Daily closes, split-adjusted: MPWR, SPY and XLK · as of 4 Nov 2026

3. 03

   49% of the way up its 52-week range

   Closed at $1,261.08 on 4 Nov 2026: 26.4% below the 52-week high of $1,714.09 (26 May 2026) and 51.4% above the low of $833.18 (21 Nov 2025).

   Daily price bars, split-adjusted · as of 4 Nov 2026

4. 04

   Volume 1.5× its 30-session average on 4 Nov 2026

   4 Nov 2026 volume of 1.2M shares was 1.5× the average of the 30 sessions before it (799.0K), as the price fell 5.1%. SPY traded 1.5× its own average that session.

   Daily volume against a 30-session baseline · as of 4 Nov 2026

5. 05

   Short interest at 3.3% of shares outstanding

   1.6M shares were sold short at the 15 Oct 2026 settlement, 3.3% of the 49.1M shares outstanding; covering them would take 2.3 days of average volume. Short interest is reported twice a month, on a lag.

   Exchange short-interest filing · as of 15 Oct 2026

At the 4 Nov 2026 close