ETF comparison
HACK vs SKYY
Both Thematic.
Holdings overlap
8 positions appear in both funds. Buying equal dollars of HACK and SKYY would leave roughly 12.4% of each dollar exposed to the same underlying securities.
Side by side
Sub-score comparison
Tracking quality isn't part of the composite — see what we don't score for why.
Cost difference
Expense ratios are effectively identical (0.60% vs 0.60%).
Fee figure is the annual expense charged on $100,000. To see how the gap compounds over a multi-decade holding period, open the cost calculator pre-filled with HACK vs SKYY.
Top shared holdings
8 shared in total| # | Holding | In HACK | In SKYY | Overlap |
|---|---|---|---|---|
| 1 | Cloudflare Inc | 5.76% | 2.97% | 2.97% |
| 2 | Fastly Inc | 5.45% | 2.82% | 2.82% |
| 3 | Cisco Systems Inc | 5.79% | 2.42% | 2.42% |
| 4 | Rubrik Inc | 3.78% | 1.75% | 1.75% |
| 5 | Palo Alto Networks Inc | 5.83% | 0.67% | 0.67% |
| 6 | Crowdstrike Holdings Inc | 5.48% | 0.65% | 0.65% |
| 7 | Zscaler Inc | 4.14% | 0.59% | 0.59% |
| 8 | Qualys Inc | 3.42% | 0.59% | 0.59% |
Only in HACK
15 total- Broadcom Inc 6.81%
- General Dynamics Corp 5.01%
- Fortinet Inc 5.00%
- Northrop Grumman Corp 4.91%
- Okta Inc 4.50%
- F5 Inc 4.49%
- Check Point Software Technolog 4.02%
- A10 Networks Inc 3.90%
- Trend Micro Inc/Japan 3.77%
- SentinelOne Inc 3.69%
Only in SKYY
55 total- DigitalOcean Holdings Inc 3.85%
- Oracle Corp. 3.76%
- International Business Machines Corp. 3.75%
- Nutanix Inc 3.69%
- Amazon.com, Inc. 3.68%
- Microsoft Corp. 3.50%
- Alphabet Inc. 3.42%
- Arista Networks Inc 3.41%
- Everpure Inc. 3.41%
- Lumen Technologies Inc 3.02%
Open HACK or SKYY at a brokerage
Both funds trade commission-free at major US brokerages.
Affiliate links — opening an account through these earns PlainIndex a one-time referral. Scoring is computed before any affiliate consideration; see our methodology and funding disclosure.
Holdings overlap is the sum of min(weight_a, weight_b) over positions
matched on ISIN (CUSIP fallback). Methodology: see
/methodology/.
Comparing two funds doesn't endorse swapping one for the other. Tax-lot history, account type, and personal goals matter — PlainIndex publishes data and methodology, not investment advice.