Modern Portfolio Theory Was Designed For Years Like 2020 (Podcast Transcript)Seeking Alpha • 09/22/20
The SPY And QQQ End The Week Teetering At Key Levels (Technically Speaking For The Week Of 9/14-9/18)Seeking Alpha • 09/18/20
Mega-cap tech stock selloff has the QQQs on track for biggest monthly drop since the financial crisisMarket Watch • 09/18/20