to the bank ’ s most recently published data, it increased its holdings of loss - absorbing capital by roughly three - quarters in the second half of 2012. in addition to retaining profits, this increase is mainly attributable to the capital measures announced in july, which have already been implemented to a large extent. in addition, as part of their strategic reorientation, both big banks announced measures which will further enhance their resilience. for instance, both institutions are planning to further expand their loss - absorbing capital, to reduce their risks and, in particular, trim their balance sheets as well as to pursue a policy of dividend restraint. the national bank welcomes the increase in the big banks ’ resilience achieved thus far, as well as the announced measures to further improve their capital situation. the consistent bis central bankers ’ speeches implementation of these measures is important for two reasons : first, leverage has remained high despite the improvement in the capital situation. second, the risks in the environment – and thus the associated potential losses for the big banks in the event of a further escalation of the european debt crisis – remain considerable. situation at domestically focused banks i would now like to turn to the situation at domestically focused banks. the risks associated with the environment in which these banks operate increased during the past six months. indeed, the isolated signs of a slowdown of growth in the mortgage and real estate markets observed in the second quarter did not materialise in the third quarter. in particular, prices in the different segments of the residential real estate market continued to rise at a sustained pace. at the same time, growth in the mortgage loan volume was still considerably higher than gdp growth. imbalances have therefore grown. as far as risk appetite and capitalisation are concerned, the situation of domestically focused banks has not changed significantly during the last six months. on the one hand, banks ’ risk appetite has not diminished overall. this is substantiated by the following : first, in the case of new mortgage loans, both the loan - to - value ratios and loan - toincome ratios have remained at a high level. second, interest rate risk has not declined and remains high. third, the already low margins on interest income have continued to decrease. there are nevertheless considerable differences from one bank to another, in particular as to how their risk appetite has evolved. certain banks have reduced their risk - taking significantly during the last quarters, while others have increased their exposure to risk

. on the other hand, average capitalisation for domestically focused banks relative to regulatory requirements is still at a historically high level. however, as the snb already emphasised in its latest financial stability report, the resilience of these banks, as measured by the regulatory capital indicators, is overestimated. therefore, six months after being announced, the stricter capital requirements for mortgages and the revision of the self - regulation rules for mortgage lending have not, or not yet, led to a significant trend reversal in mortgage and real estate markets, although there is some anecdotal evidence pointing in that direction. it cannot be ruled out that the impact of these measures has not fully materialised or is simply not yet reflected in the data available. in particular, due to the still exceptionally low interest rates, there is, however, a considerable risk that these imbalances continue to build up, and the risk of an abrupt correction over the medium term keeps increasing. under these circumstances, the snb is carefully monitoring the developments in mortgage and real estate markets. it periodically assesses the necessity to activate the countercyclical capital buffer. issuance of the new banknote series in 2015 at the earliest in february 2012, the national bank informed the public that the new banknote series would be postponed. today, i would like to provide some background information on our decision. the national bank is committed to putting banknotes into circulation that are state of the art in terms of both their design and their technological aspects. in order to meet this standard, such a project must be launched at an early stage. integrating and combining security features involving new technologies that have not previously been used for banknotes presents a special challenge. since the development phase for new security features is very long, launching a new series is likely to take several years for the technical feasibility assessment alone. certain insights can only be gained during the actual serial production. bis central bankers ’ speeches the development of the new banknote series began in 2005 with a design competition. in the planning phase for the technical feasibility and during initial production tests in 2010, it became evident that the complexity of the new security features necessitated a postponement of the issue date to autumn 2012. in autumn 2011, during an early phase of the serial production, technical difficulties arose which had not been discernible in the testing phase, whose results were positive. for this reason, the snb this year decided to conduct a comprehensive re - assessment of the entire