{"url":"https://etfiq.com/compare/buffer/cpsd-vs-zdek","section":"compare","title":"CPSD vs ZDEK: Cap, Buffer & Days Left | ETFIQ","description":"As of Oct 21, 2026 CPSD can fall 5.5% and ZDEK 5.8% before its buffer engages, on SPY. Both end their outcome period on Nov 30, 2026.","as_of":"Oct 21, 2026","structured_data":[{"@type":"FAQPage","mainEntity":[{"@type":"Question","name":"Which resets first, CPSD or ZDEK?","acceptedAnswer":{"@type":"Answer","text":"CPSD ends its outcome period on Nov 30, 2026 and ZDEK on Nov 30, 2026. A new cap is set the day after each."}},{"@type":"Question","name":"Which is cheaper, CPSD or ZDEK?","acceptedAnswer":{"@type":"Answer","text":"CPSD charges 0.69% a year and ZDEK charges 0.79%, so CPSD is cheaper. Fees come from each fund's prospectus."}}]},{"@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"ETFIQ","item":"https://etfiq.com/"},{"@type":"ListItem","position":2,"name":"Buffer ETFs","item":"https://etfiq.com/buffer/"},{"@type":"ListItem","position":3,"name":"Compare ETFs","item":"https://etfiq.com/compare/"},{"@type":"ListItem","position":4,"name":"CPSD vs ZDEK","item":"https://etfiq.com/compare/buffer/cpsd-vs-zdek"}]},{"@type":"WebPage","name":"CPSD vs ZDEK: Cap, Buffer & Days Left","description":"As of Oct 21, 2026 CPSD can fall 5.5% and ZDEK 5.8% before its buffer engages, on SPY. Both end their outcome period on Nov 30, 2026.","url":"https://etfiq.com/compare/buffer/cpsd-vs-zdek","dateModified":"2026-10-21","abstract":"As of Oct 21, 2026 ZDEK can fall 5.8% before its buffer engages and CPSD 5.5%.","publisher":{"@id":"https://etfiq.com/#org"},"isPartOf":{"@id":"https://etfiq.com/#website"},"speakable":{"@type":"SpeakableSpecification","cssSelector":[".verdict",".faq"]}},{"@type":"Dataset","name":"ETFIQ comparison of CPSD and ZDEK","description":"As of Oct 21, 2026 CPSD can fall 5.5% and ZDEK 5.8% before its buffer engages, on SPY. Both end their outcome period on Nov 30, 2026.","dateModified":"2026-10-21","creator":{"@id":"https://etfiq.com/#org"},"isAccessibleForFree":true,"url":"https://etfiq.com/compare/buffer/cpsd-vs-zdek","license":"https://etfiq.com/license/","publisher":{"@id":"https://etfiq.com/#org"},"inLanguage":"en","creativeWorkStatus":"Published","distribution":[{"@type":"DataDownload","encodingFormat":"application/json","contentUrl":"https://etfiq.com/data/funds.json"}],"variableMeasured":["Remaining cap","Fall before the buffer engages","Protection left in index points","Starting buffer","Outcome period","Reference index return","Fund return","Days remaining","Expense ratio"],"keywords":["exchange-traded funds","ETF","Buffer ETFs","fund data","SEC filings"]}],"characters":5790,"truncated":true,"content":"ETFIQ / Buffer ETFs / Compare ETFs / CPSD vs ZDEK \n ETFIQ etfiq.com \u00b7 independent ETF data \n\n Data as of Oct 21, 2026 .\n\n CPSD vs ZDEK: Cap, Buffer & Days Left\n\n As of Oct 21, 2026 ZDEK can fall 5.8% before its buffer engages and CPSD 5.5%.\n Copy this for sharing \n \n CPSD costs 0.10 points a year less; both returned +6.4% over a year; ZDEK is 2.3 times larger.\n CPSD and ZDEK at a glance. As of Oct 21, 2026. Source: ETFIQ. CPSD ZDEK \n Expense ratio 0.69% 0.79% \n Net assets $46m $108m \n Total return, 1 year +6.4% +6.4% \n What it tracks SPY SPY \n Holdings in common not published \n \n Net assets on","source":"ETFIQ, independent ETF data. Recomputed nightly from public filings and prices.","publisher":{"@id":"https://etfiq.com/#org","name":"ETFIQ","url":"https://etfiq.com"},"license":"https://etfiq.com/license/","license_text":"Figures ETFIQ computes are free to use with attribution: ETFIQ (etfiq.com). Issuer data stays under its owner's terms.","citation":"ETFIQ, CPSD against ZDEK, data as of Oct 21, 2026. https://etfiq.com/compare/buffer/cpsd-vs-zdek","a":{"ticker":"CPSD","name":"Calamos S&P 500 Structured Alt Protection ETF - December","issuer":"Calamos","desk":"buffer","as_of":"2026-10-21","verdict":"Since Dec 1, 2025, CPSD returned 5.3%, against 13.6% for SPY. It is at its cap.","url":"https://etfiq.com/funds/cpsd","key_facts":[{"label":"Fall before the buffer from today\u2019s fund price","value":"5.5%","as_of":"2026-10-21","source":null},{"label":"Protection left, index points","value":"100.0%","as_of":"2026-10-21","source":null},{"label":"Days to reset","value":"40","as_of":"2026-10-21","source":null},{"label":"Net assets","value":"$46m","as_of":"2026-10-21","source":"issuer page, as of Oct 21, 2026"},{"label":"Expense ratio","value":"0.69%","as_of":"2026-10-21","source":"issuer page, Oct 21, 2026"},{"label":"Reference index","value":"SPY","as_of":"2026-10-21","source":null}]},"b":{"ticker":"ZDEK","name":"Innovator Equity Defined Protection ETF - 1 Yr December","issuer":"Innovator","desk":"buffer","as_of":"2026-10-21","verdict":"Since Nov 30, 2025, ZDEK returned 5.3%, against 13.1% for SPY. It can gain 0.8% more before its cap.","url":"https://etfiq.com/funds/zdek","key_facts":[{"label":"Can still gain from today\u2019s fund price","value":"0.8%","as_of":"2026-10-21","source":null},{"label":"Fall before the buffer from today\u2019s fund price","value":"5.8%","as_of":"2026-10-21","source":null},{"label":"Protection left, index points","value":"100.0%","as_of":"2026-10-21","source":null},{"label":"Days to reset","value":"40","as_of":"2026-10-21","source":null},{"label":"Net assets","value":"$108m","as_of":"2026-10-21","source":"issuer page, as of Oct 21, 2026"},{"label":"Expense ratio","value":"0.79%","as_of":"2026-10-21","source":"issuer page, Oct 21, 2026"}]},"overlap_pct":null,"overlap_note":"ETFIQ does not publish a holdings overlap for this pair. Either the funds are not compared on holdings, or one book is incomplete.","full_text_at":"https://etfiq.com/compare/buffer/cpsd-vs-zdek"}