best performance large mega cap between 15 august 1984 and 20

Suncor Energy (SU) had the highest return on August 15, 1984 by a US stock with a market cap of $10B+, returning 3.4%.

ASSETDATE% RETURN
Suncor Energy (SU)
8/15/1984
3.41%
CACI International (CACI)
8/15/1984
3.33%
Graco (GGG)
8/15/1984
2.94%
Smith AO (AOS)
8/15/1984
2%
Southwest Airlines (LUV)
8/15/1984
1.91%
Loews (L)
8/15/1984
1.83%
British American Tobacco (BTI)
8/15/1984
1.73%
Walt Disney (DIS)
8/15/1984
1.36%
Travelers Companies (TRV)
8/15/1984
1.35%
Viatris (VTRS)
8/15/1984
1.29%
Texas Instruments (TXN)
8/15/1984
1.26%
Regions Financial (RF)
8/15/1984
1.24%
PPG Industries (PPG)
8/15/1984
1.16%
Ball (BALL)
8/15/1984
1.1%
Eaton (ETN)
8/15/1984
1.01%
SPX (SPXC)
8/15/1984
0.94%
Bank of America (BAC)
8/15/1984
0.91%
Lockheed Martin (LMT)
8/15/1984
0.86%
American International (AIG)
8/15/1984
0.8%
Teradyne (TER)
8/15/1984
0.79%
American Electric Power (AEP)
8/15/1984
0.69%
Honda Motor Co Ltd ADR (HMC)
8/15/1984
0.64%
International Business Machines (IBM)
8/15/1984
0.62%
Thermo Fisher Scientific (TMO)
8/15/1984
0.61%
Exxon Mobil (XOM)
8/15/1984
0.61%