B Grade - ETH and EOS.
B- Grade - ADA, NEO and Steem.
C+ Grade - ARK, BTC, BTS, GBYTE, DASH, DCR, IOC, LTC and NEM.
I would presume that on their next rating schedule some of the C+ could potentially get a B-
C Grade - AEON, ASCH , BLK, BLOCK, BURST, BCN, XCP, DOGE, ETC, KMD, LSK, MNR, NAV, NBL, NXS, NXT, PPC, PIVX, QTUM, XRB and XRP.
C- Grade - BCH, CLOAK, DGB, XDN, ETN, FTC, NMC, RDD, SKY, UBQ, VIA, XWC and ZEN.
D+ Grade - AUR, BTG, EMC2, GAME, NLG, MEC, ETP and PURA.
D Grade - EXP, GUP, NVC, POT, QUARK, RISE and SALUS.
These ratings are meaningless, they are coming from dinosaurs who wish we could go back to the roaring 1950s

They are not meaningless at all. By giving these ratings, they are making crypto assets more legit and mainstream. These ratings are not based on the merits of the technology but their potentials as investments and they NEVER give out A's. A rating of C is not bad like in school grades and actually indicates to hold that investment.