Co-Diagnostics Inc. CODX shares dropped 28.26% to $0.46 in pre-market trading on Tuesday, wiping out the gains from Monday’s 80.76% surge, which had closed at $0.64, according to Benzinga Pro data.Check out the current price of CODX stock here.Strategic Partnership Fails to Sustain MomentumThe molecular diagnostics firm revealed it has signed a Memorandum of Understanding with a Saudi Arabian partner to potentially create a joint venture aimed at developing and distributing its Co-Dx™ PCR platform technolog ...