Optical Communication ETF vs. DRAM ETF vs. EUV DRAM is the memory-focused ETF. EUV is the optical communication-focused ETF. Here’s a new niche industry ETF: DRAM focuses on memory, while EUV focuses on photolithography + the semiconductor photonics supply chain. If you think, 'As AI data centers grow larger, not only do chips need to be more powerful, but the data transfer between chips also needs to be faster,' then you might want to check out the EUV ETF. You can think of it as the 'AI Hardware Bottleneck ETF': one side bets on advanced manufacturing, the other on optical interconnects. It’s all about photolithography + the semiconductor photonics supply chain. Top holdings: TSM 9.7% ASML 7.88% GLW 5.03% LRCX 4.91% AMAT 4.91% LITE 4.36% But keep in mind, this ETF just launched, and its holdings are concentrated in the hot AI hardware chain. Current liquidity is still limited, similar to the early days of DRAM. The expansion of optical communication is even slower than memory, so it’s worth keeping an eye on.