Those poor boys. Although they got $65M from Zuckerberg in the Facebook mess, and they did come in 6th in the rowing competition in Beijing, I'm not sure there's any silver lining in this new blow. 

The SEC, today after market close,  rejected their ETF saying that bitcoin is too unregulated and would currently be unable to enter into, the type of surveillance-sharing agreement that has been in place with respect to all previously approved commodity-trust ETPs—agreements that help address concerns about the potential for fraudulent or manipulative acts and practices in this market.

The price of bitcoin is now at $1126 but it was retracing even before this announcement, and it is expected to rise again.  After reading the comments on some of the bitcoin sites, the ETF was seen as an American thing, and most of the bitcoin activity is outside the US anyway, and they don't care about ETF's in most of the world.

So far there are two more bitcoin ETF decisions to go. The SEC decision on SolidX is due on March 30, and the Grayscale decision in October. (There's a stock market saying that if you have an X in your name your stock will tank.)

There are at least three bitcoin ETFs that are somewhere in the process of seeking SEC approval. I'm not aware of any ETFs (existing or proposed), for other cryptocurriencies

The Winklevoss twins, (remember the Facebook movie), have filed new papers this week  with the SEC as part of their efforts to get their bitcoin ETF COIN approved. Not everyone in the bitcoin community is happy. There is talk that "hard fork" issues will cause compatibility issues and may force bitcoin to split into two separate coins.

There’s another proposed bitcoin ETF from a company called SolidX that is also structured as a grantor trust.
The biggest difference between this bitcoin ETF proposal and the Winklevoss one is that SolidX included a type of insurance in case there's a hacking or some security breakdown on the price exchanges they’ll be using.

The third bitcoin ETF proposal is from Grayscale, who already has a bitcoin exchange-traded product, though not an ETF. Grayscale created a limited partnership (LP) that owns bitcoins. They trade on the over-the-counter (OTC) market under the symbol GBTC You can trade the Grayscale Bitcoin product today. They charge a 2% expense ratio for facilitating investable access to bitcoin. It trades like a closed fund and does not have the ability to create or redeem shares in the open market, which can significantly crimp liquidity.

An entity called the "EtherIndex Ether Trust" filed an S-1 July 15, 2016 with the U.S. Securities and Exchange Commission (SEC). If any of the Bitcoin ETFs get approved an ETH ETF may follow, although this one doesn't have a lot of good press.

Top 15 Cryptocurrencies
For the whole list of 659 cryptocurriencies go to:

#        Name               Symbol           Market Cap                RecentPrice
1        Bitcoin              BTC             $19,812,815,481           $1223.61
2        Ethereum          ETH              $1,552,202,844           $17.37
3        Dash                DASH               $317,566,482           $44.52
4        Ripple               XRP                 $210,761,939           $0.005674
5        Litecoin            LTC                 $190,212,792           $3.80
6        Monero             XMR                $173,636,866           $12.37
7        Ethereum Classic ETC               $120,475,011           $1.35
8        MaidSafeCoin      MAID               $73,828,043           $0.163137
9        NEM                  XEM               $70,766,730            $0.007863
10       Augur               REP               $55,681,230             $5.06
11       Zcash               ZEC               $32,536,551            $42.08
12       Iconomi             ICN               $28,991,619            $0.333237
13       Factom             FCT               $27,718,819            $3.17
14       Tether              USDT              $24,950,994           $1.00
15       Steem              STEEM            $23,495,479           $0.099182

Further down the list but with a lot of potential according to some experts are Lisk (LSK), NAVCoin (NAV), and SysCoin (SYS).

Some people claim to make money, (the $USD kind), by trading these 659 curriencies. Some are very volitile jumping around with various news articles.