Custom Index Systems’s Amplify Blockchain Technology ETF BLOK Stock Holding History

Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake
Trade Value Portfolio Weight Portfolio Position
2026
Q2
$218K Buy
+3,483
New +$215K 0.08% 230
2025
Q4
Sell
-4,414
Closed -$296K 246
2025
Q3
$296K Buy
+4,414
New +$267K 0.09% 223

Other funds holding BLOK

Custom Index Systems's BLOK Position: Q2 2026 in Review

Custom Index Systems opened a new position in Amplify Blockchain Technology ETF (BLOK) in Q2 2026: 3,483 shares worth $218K. The stake represents 0.08% of the portfolio and ranks #230 among its holdings. This is a return to the name: Custom Index Systems previously reported a position in BLOK as recently as Q3 2025.

Custom Index Systems first reported a position in BLOK in Q3 2025 and has held it in 2 quarters since. The position peaked at $296K in Q3 2025. 274 funds tracked by Wall St. Rank hold BLOK as of Q2 2026.

  • Custom Index Systems held 3,483 shares of Amplify Blockchain Technology ETF worth $218K as of Q2 2026.
  • Amplify Blockchain Technology ETF was a new Custom Index Systems position in Q2 2026.
  • Amplify Blockchain Technology ETF made up 0.08% of Custom Index Systems's portfolio in Q2 2026, its #230 holding.
  • Custom Index Systems first reported a position in Amplify Blockchain Technology ETF in Q3 2025 and has held it in 2 quarters since.
  • Custom Index Systems's Amplify Blockchain Technology ETF position peaked at $296K in Q3 2025.
  • 274 funds tracked by Wall St. Rank held Amplify Blockchain Technology ETF as of Q2 2026.

Based on Custom Index Systems's 13F filing for Q2 2026, filed 14 Aug 2026.