Free Writing Prospectus

Filed Pursuant to Rule 433

Registration Statement No. 333-177923

Dated October 8, 2014

J P M O R G A N U S S E C T O R R O T A T O R 8 I N D E X P E R F O R M A N C E D E T A I L S October 2014

J.P. Morgan U.S. Sector Rotator 8 Index Performance Details J.P. Morgan U.S. Sector Rotator 8 Index (the "Index") Performance -- Bloomberg JPUSSC8E Index 2004 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Full Year JPUSSC8E Index 0.94% 0.23% -1.01% -4.73% -0.31% 1.39% -1.23% 2.03% -0.08% 1.04% 2.92% 0.59% 1.57% 2005 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Full Year JPUSSC8E Index -2.34% 1.13% -0.84% 1.25% 1.33% 0.28% 2.72% -1.38% -0.90% -1.48% 0.47% -0.27% -0.16% 2006 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Full Year JPUSSC8E Index 2.03% -0.62% 1.22% 0.39% -2.02% -0.52% 1.55% 1.34% 0.65% 2.73% 1.90% -0.48% 8.37% 2007 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Full Year JPUSSC8E Index 2.20% -1.96% 0.20% 1.85% 2.23% -0.95% 0.65% 1.08% 0.92% 0.75% -0.46% -0.73% 5.83% 2008 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Full Year JPUSSC8E Index -2.39% -0.17% 0.06% 0.75% 0.82% -1.73% -0.99% 0.50% -2.69% -2.72% 1.36% 2.37% -4.87% 2009 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Full Year JPUSSC8E Index -0.07% -2.28% 1.40% 2.25% 0.57% 0.17% 2.44% 1.27% 1.33% -1.01% 2.46% 1.11% 9.96% 2010 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Full Year JPUSSC8E Index -3.31% 0.54% 2.97% 2.28% -3.50% 1.88% 1.01% -0.91% 1.06% 1.86% 0.51% 2.27% 6.61% 2011 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Full Year JPUSSC8E Index 2.04% 2.16% -0.07% 1.85% 1.28% -1.22% 0.91% -1.69% -1.81% 1.02% -0.20% 1.84% 6.15% 2012 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Full Year JPUSSC8E Index 0.53% 1.69% 2.42% 0.07% -0.30% 0.59% 0.56% -0.52% 2.00% -0.55% -0.11% 0.23% 6.77% 2013 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Full Year JPUSSC8E Index 2.88% 0.71% 3.45% 3.09% -1.85% -0.63% 1.77% -2.32% 2.19% 2.61% 1.48% 2.03% 16.30% 2014 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec YTD JPUSSC8E Index -3.79% 2.02% -0.08% 2.01% 1.06% 1.34% -2.10% 3.49% -0.66% 3.12% Please see key risks on the next page for additional information. Source: J.P. Morgan. Past performance is not a guide to future performance. "JPUSSC8E Index" refers to the performance of J.P. Morgan U.S. Sector Rotator 8 Index (Bloomberg: JPUSSC8E Index). The levels of the Index incorporate an adjustment factor of 0.50% per annum. Hypothetical, historical performance measures: Represents the monthly and full calendar year performance of the Index based on as applicable to the relevant measurement period, the hypothetical back tested daily closing levels from December 31, 2003 through June 28, 2013, and the actual historical performance of the Index based on daily closing levels from July 1, 2013 through September 30, 2014. The hypothetical historical values above have not been verified by an independent third party. The back-tested, hypothetical historical results above have inherent limitations. These back-tested results are achieved by means of a retroactive application of a back-tested model designed with the benefit of hindsight. No representation is made that an investment linked to the Index will or is likely to achieve returns similar to those shown. Alternative modelling techniques or assumptions would produce different hypothetical historical information that might prove to be more appropriate and that might differ significantly from the hypothetical historical information set forth above. Hypothetical back-tested results are neither an indicator nor a guarantee of future returns. Actual results will vary, perhaps materially, from the analysis implied in the hypothetical historical information that forms part of the information contained in the table above. 1

Key Risks [] The Strategy comprises notional assets and liabilities [] The Index may use leverage to increase the return from any Constituent because the sum of the weights of the Basket Constituents included in the synthetic portfolio underlying the Index may be greater than 100%, up to a maximum total weight of 220%. In particular, the use of leverage will magnify any negative performance of the relevant Constituents which in turn could cause you to receive a lower payment at maturity than you would otherwise receive. [] The levels of the Index will include a daily deduction fee of 0.50% per annum. [] There are risks associated with a momentum-based investment strategy- The Index is different from a strategy that seeks long-term exposure to a portfolio consisting of constant components with fixed weights. The Index may fail to realize gains that could occur from holding assets that have experienced price declines, but experience a sudden price spike thereafter. [] Correlation of performance among the Index constituents may reduce the performance of the Index. [] Our affiliate, JPMS plc, is the Index Sponsor and Index Calculation Agent and is responsible for calculating and maintaining the Index and developing guidelines and policies governing the Index. We and our affiliates are entitled to exercise discretion in good faith and a commercially reasonable manner in relation to the securities and the Index. JPMS plc is under no obligation to consider your interest as an investor with returns linked to the Index. [] The Index may not be successful, may not outperform any alternative strategy related to the Index constituents, or may not achieve its target volatility of 8%. [] The investment strategy involves monthly rebalancing and maximum weighting caps applied to the Index constituents. [] Changes in the value of the Index constituents may offset each other. [] The Index was established on July 1, 2013 and has a limited operating history. DISCLAIMER JPMorgan Chase and Co. ("J.P. Morgan") has filed a registration statement (including a prospectus) with the Securities and Exchange Commission (the "SEC") for any offerings to which these materials relate. Before you invest in any offering of securities by J.P. Morgan, you should read the prospectus in that registration statement, the prospectus supplement, as well as the particular product supplement, underlying supplement, the relevant termsheet or pricing supplement, and any other documents that J.P. Morgan will file with the SEC relating to such offering for more complete information about J.P. Morgan and the offering of any securities. You may get these documents without cost by visiting EDGAR on the SEC Website at www.sec.gov. Alternatively, J.P. Morgan, any agent or any dealer participating in the particular offering will arrange to send you the prospectus and the prospectus supplement, as well as any product supplement, underlying supplement and termsheet or pricing supplement, if you so request by calling toll-free (800) 576 3529. Free Writing Prospectus filed pursuant to Rule 433; Registration Statement No. 333-177923 2